aspuru-list May 2017

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18 participants
54 discussions

[Aspuru-Guzik Group List] Fwd: American Conference on Theoretical Chemistry in Boston in July this year!

by Alan Aspuru-Guzik

Last call guys for registering / telling me what you want to talk about?? Send me an abstract by FRIDAY if you want to go to ACTC and present a poster. Alan Alán Aspuru-Guzik | Professor of Chemistry and Chemical Biology Harvard University | 12 Oxford Street, Room M138 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu | http://about.me/aspuru ---------- Forwarded message ---------- From: Coker, David <coker(a)bu.edu> Date: Tue, May 16, 2017 at 2:51 PM Subject: American Conference on Theoretical Chemistry in Boston in July this year! To: Bernhardt L Trout <trout(a)mit.edu>, Jianshu Cao <jianshu(a)mit.edu>, "Adam P. Willard" <awillard(a)mit.edu>, Troy Van Voorhis <tvan(a)mit.edu>, "Heller, Eric" <heller(a)physics.harvard.edu>, Efthimios Kaxiras < kaxiras(a)physics.harvard.edu> Cc: "arupc(a)mit.edu" <arupc(a)mit.edu>, "m.ondrechen(a)neu.edu" < m.ondrechen(a)neu.edu>, Paul Champion <p.champion(a)northeastern.edu>, Alan Aspuru-Guzik <alan(a)aspuru.com>, "gordon(a)chemistry.harvard.edu" < gordon(a)chemistry.harvard.edu>, "marci(a)tammy.harvard.edu" < marci(a)tammy.harvard.edu>, "hbach(a)chemistry.harvard.edu" < hbach(a)chemistry.harvard.edu>, "shakhnovich(a)chemistry.harvard.edu" < shakhnovich(a)chemistry.harvard.edu>, "Yu-Shan.Lin(a)tufts.edu" < Yu-Shan.Lin(a)tufts.edu>, "shuo(a)clarku.edu" <shuo(a)clarku.edu>, " hgould(a)clarku.edu" <hgould(a)clarku.edu>, "richard_stratt(a)brown.edu" < richard_stratt(a)brown.edu>, "dfreeman(a)chm.uri.edu" <dfreeman(a)chm.uri.edu>, Sharon Hammes-Schiffer <shs3(a)illinois.edu>, Todd Martinez < toddjmartinez(a)gmail.com>, "Coker, David" <coker(a)bu.edu> Dear Boston Area Colleagues, as you may know Sharon Hammes-Schiffer, Todd Martinez and I are organizing this year’s American Conference on Theoretical Chemistry (ACTC 2017), which will be held July 16 - 21, 2017, just two months from now, *right here at Boston!* It promises to be a very exciting meeting, the details of which can be found at the conference website: http://meetatbu.com/actc/ If you have students or post-docs who you think might benefit from participating in the conference, highlighting their work and networking with our community, we would really appreciate you passing this email along to them and encouraging their engagement. Thanks so much for your time and helping to promote this Theoretical Chemistry community event! Sharon Hammes-Schiffer, Todd Martinez, and David Coker David Coker Director, Center for Computational Science Professor of Chemistry and Physics Department of Chemistry Boston University +1 617 353 2490 <(617)%20353-2490> (Chem) +1 617 358 0099 <(617)%20358-0099> (CCS) coker(a)bu.edu http://www.bu.edu/chemistry/faculty/coker http://people.bu.edu/cokergrp/index.html http://ccs.bu.edu

6 years, 11 months

[Aspuru-Guzik Group List] Excitonics/Perovskite Seminar: TODAY at noon in 36-428

by Catherine M Bourgeois

CENTER FOR EXCTIONICS presents: Perovskite Tandems: A Path Towards Stable 27% Efficiencies* May 17, 2017 at 12 noon/RLE Haus room: 36-428 Axel Palmstrom Stanford University [http://www.rle.mit.edu/excitonics/wp-content/uploads/2017/05/AlexP1-199x300…] Hybrid lead halide perovskites are promising candidates for low cost, thin film light absorbers; they have a tunable band gap and have demonstrated efficiencies as high as 22.1%. As such, these materials are of interest for wide-bandgap absorbers in tandem photovoltaics. Hybrid lead halide perovskites are soft materials with rough surfaces and are sensitive to temperature and oxidative conditions, making many deposition processes incompatible with this material. Typical perovskite solar cells employ spin-deposited organic selective transport layers and evaporated metal contacts on top of the perovskite absorber. These organic selective transport layers have a few main drawbacks for tandem solar cells: first, the rough perovskite surface requires thick organic layers for complete coverage, resulting in significant optical losses, second, these organic materials are incompatible with the types of sputter processes used to deposit high quality transparent contacts (such as indium-tin oxide) and third, organic materials are typically poor elemental diffusion barriers; such barriers are important for device stability. We applied tin oxide by atomic layer deposition (ALD) as a dual-purpose layer to achieve electron selectivity and sputter protection with high optical transmission in monolithic perovskite/silicon and perovskite/perovskite tandem devices. I look at methods to push perovskite tandem efficiencies to 27% and beyond through targeted short circuit current density, fill factor and open circuit voltage enhancements while maintaining a stable device architecture. I will focus on the perovskite-tin oxide interface on a range of perovskite compositions. Here I investigate the role of organic surface passivation layers and ALD processing conditions on perovskite degradation and interface energetics, which ultimately affects device open circuit voltage, a key figure of merit towards achieving stable 27% efficient devices. Axel Palmstrom is a graduate student at Stanford University in the group of Stacey Bent pursuing his Ph.D. in Chemical Engineering. He graduated with Highest Honors from the University of California, Santa Barbara in 2012 with a B.S. in Chemical Engineering. His work focuses on the study metal oxide thin films grown by atomic layer deposition for applications in thin film photovoltaics, including electron and hole selective layers, barrier layers and surface passivation. *This talk is part of the Perovskites Seminar Series organized by Juan-Pablo Correa-Baena from MIT's PV Lab and sponsored by the Center for Excitonics. For more info contact Juan-Pablo: jpcorrea(a)mit.edu<mailto:jpcorrea@mit.edu> The Center For Excitonics Is An Energy Frontier Research Center Funded By The U.S. Department Of Energy, Office Of Science And Office Of Basic Energy Sciences Light refreshments will be served.

6 years, 11 months

[Aspuru-Guzik Group List] Excitonics/Perovskite Seminar

by Catherine M Bourgeois

Please post and forward to your group(s). CENTER FOR EXCTIONICS presents: Perovskite Tandems: A Path Towards Stable 27% Efficiencies* May 17, 2017 at 12 noon/RLE Haus room: 36-428 Axel Palmstrom Stanford University [http://www.rle.mit.edu/excitonics/wp-content/uploads/2017/05/AlexP1-199x300…] Hybrid lead halide perovskites are promising candidates for low cost, thin film light absorbers; they have a tunable band gap and have demonstrated efficiencies as high as 22.1%. As such, these materials are of interest for wide-bandgap absorbers in tandem photovoltaics. Hybrid lead halide perovskites are soft materials with rough surfaces and are sensitive to temperature and oxidative conditions, making many deposition processes incompatible with this material. Typical perovskite solar cells employ spin-deposited organic selective transport layers and evaporated metal contacts on top of the perovskite absorber. These organic selective transport layers have a few main drawbacks for tandem solar cells: first, the rough perovskite surface requires thick organic layers for complete coverage, resulting in significant optical losses, second, these organic materials are incompatible with the types of sputter processes used to deposit high quality transparent contacts (such as indium-tin oxide) and third, organic materials are typically poor elemental diffusion barriers; such barriers are important for device stability. We applied tin oxide by atomic layer deposition (ALD) as a dual-purpose layer to achieve electron selectivity and sputter protection with high optical transmission in monolithic perovskite/silicon and perovskite/perovskite tandem devices. I look at methods to push perovskite tandem efficiencies to 27% and beyond through targeted short circuit current density, fill factor and open circuit voltage enhancements while maintaining a stable device architecture. I will focus on the perovskite-tin oxide interface on a range of perovskite compositions. Here I investigate the role of organic surface passivation layers and ALD processing conditions on perovskite degradation and interface energetics, which ultimately affects device open circuit voltage, a key figure of merit towards achieving stable 27% efficient devices. Axel Palmstrom is a graduate student at Stanford University in the group of Stacey Bent pursuing his Ph.D. in Chemical Engineering. He graduated with Highest Honors from the University of California, Santa Barbara in 2012 with a B.S. in Chemical Engineering. His work focuses on the study metal oxide thin films grown by atomic layer deposition for applications in thin film photovoltaics, including electron and hole selective layers, barrier layers and surface passivation. *This talk is part of the Perovskites Seminar Series organized by Juan-Pablo Correa-Baena from MIT's PV Lab and sponsored by the Center for Excitonics. For more info contact Juan-Pablo: jpcorrea(a)mit.edu<mailto:jpcorrea@mit.edu> The Center For Excitonics Is An Energy Frontier Research Center Funded By The U.S. Department Of Energy, Office Of Science And Office Of Basic Energy Sciences Light refreshments will be served.

6 years, 11 months

[Aspuru-Guzik Group List] [June-August] Subgroup Meeting Dates and Times

by Siria Serrano

Everyone, Good afternoon! Below are the scheduled subgroup meetings for the Summer (June-August). All meetings are in the Group Calendar. I am scheduling the Materials and ML meetings with Steven on a monthly basis given travel logistics. *Excitonics* June 2nd 1:30-2:30 PM July 6th 10-11 AM August 2nd 11-Noon *Quantum* June 8th 10:30-11:30 AM July 7th 1:30-2:30 PM August 2nd 1:30-2:30 PM *Materials & Machine Learning* June 26th 1:30-3:30 PM Cheers, Siria -- *Siria Serrano* *Faculty Assistant* *Aspuru-Guzik Group* *Harvard University **Department of Chemistry and Chemical Biology* *12 Oxford St. M 136* *Cambridge, MA 02138* *P:** (617) 496-1716 <%28617%29%20496-1716>** F: **617-496-9411 <617-496-9411>*

6 years, 11 months

[Aspuru-Guzik Group List] Excitonics Seminar TODAY, May 16, 4:30 PM

by Catherine M Bourgeois

Center for Excitonics Seminar Series Presents: A hybrid molecular-nanocrystal platform for photon upconversion May 16, 2017 at 4:30pm/36-428 Ming Lee Tang University of California, Riverside/ Department of Chemistry, and Material Science and Engineering [http://www.rle.mit.edu/excitonics/wp-content/uploads/2016/10/mingleetang.2.…] Third generation photovoltaics are inexpensive modules that promise power conversion efficiencies (PCEs) exceeding the thermodynamic Shockley-Queisser limit, perhaps by using up- or down-converters, intermediate band solar cells, tandem cells, hot carrier devices, or multi-exciton generation (MEG). Here, I introduce a hybrid platform comprised of semiconductor nanocrystals and organic semiconductor molecules that can efficiently upconvert light of visible and infrared wavelengths, at excitation densities below the solar flux. For example, colloidally synthesized core-shell lead sulfide -cadmium sulfide nanocrystals (NCs), in combination with tetracene derivatives, absorb near infrared (NIR) light and emit visible light at 560 nm with an upconversion quantum yield (QY) of 8.4 ± 1.0 %. This is achieved with NIR cw excitation at 3.2 mW/cm2, approximately three times lower than the available solar flux and about a million times lower excitation densities than state of the art lanthanide-based upconversion materials, for comparable QYs. The molecular and nanocrystal engineering here paves the way towards utilizing this hybrid upconversion platform in photovoltaics, photodetectors and photocatalysis. Ming Lee Tang is the Assistant Professor in the department of Chemistry, and Material Science and Engineering at the University of California, Riverside. Her research group focuses on the design, synthesis and characterization of novel hybrid organic-inorganic materials. Emphasis is on the synthesis of tailor-made organic ligands designed to control, enhance or mediate the optoelectronic properties of nanocrystals (NCs). The use of synthetic organic chemistry in ligand design enables desired properties to be embedded in a modular and scalable manner. These ligands allow the size, shape and material dependent properties of the NCs to be harnessed for energy, metamaterial and optoelectronic applications. The synthetic expertise in this group is complemented by single molecule spectroscopic and thin-film current-voltage measurements. The Center For Excitonics Is An Energy Frontier Research Center Funded By The U.S. Department Of Energy, Office Of Science And Office Of Basic Energy Sciences Light refreshments will be served.

6 years, 11 months

[Aspuru-Guzik Group List] [qip] Fwd: [info.statphys] Postdoc Positions in Nonequilibrium Statistical Physics

by Ramis Movassagh

---------- Forwarded message ---------- From: Mike Cates <m.e.cates(a)damtp.cam.ac.uk> Date: Tue, May 16, 2017 at 3:58 AM Subject: [info.statphys] Postdoc Positions in Nonequilibrium Statistical Physics To: "info.statphys(a)listes.ens-lyon.fr" <info.statphys(a)listes.ens-lyon.fr> I am seeking to fill two postdoc positions. These are funded by my newly awarded ERC Advanced Grant entitled Active and Driven Systems: Nonequilibrium Statistical Physics (ADSNeSP) One position is for 3 years, the other for up to 5 years. These roles will allow significant independence within the overall scope of the programme. Both appointees will be based in my group in DAMTP (Cambridge). For more details see http://www.jobs.cam.ac.uk/job/13678/ If you know any suitable candidates please ask encourage them to apply. If you are one, please apply yourself! The University of Cambridge values diversity and is committed to equality of opportunity. The Department would particularly welcome applications from women, since women are, and have historically been, underrepresented on our research staff. Mike Cates -- Michael Cates FRS Lucasian Professor of Mathematics and Royal Society Research Professor DAMTP, Centre for Mathematical Sciences University of Cambridge CB3 0WA United Kingdom +44 (0)1223 337912 m.e.cates(a)damtp.cam.ac.uk -- Michael Cates FRS Lucasian Professor of Mathematics and Royal Society Research Professor DAMTP, Centre for Mathematical Sciences University of Cambridge CB3 0WA United Kingdom +44 (0)1223 337912 m.e.cates(a)damtp.cam.ac.uk -- Ramis _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

6 years, 11 months

[Aspuru-Guzik Group List] [qip] Chris Fuchs speaks at Harvard, Thurs at noon

by Aram Harrow

*ITAMP Lunch Seminar* *Speaker:* Prof. Christopher Fuchs (University of Massachusetts Boston) *Date:* Thursday, May 18th *Time:* 12:00-1:30 pm Includes Pizza. * Title: *QBism's Playground: Introducing the Qplex *Abstract: * Some time ago, Steven Weinberg wrote an article for the New York Review of Books with the title, “Symmetry: A `Key to Nature’s Secrets’.” So too, I would like to say of quantum theory itself: Only by identifying Hilbert space’s most stringent and hard-to-attain symmetries will we be able to unlock quantum theory’s deepest secrets and greatest potential. In this talk, I introduce the “symmetric informationally complete” (SIC) sets of quantum states as a candidate for such a symmetry. When these structures exist (and it seems they do for all finite dimensions, though no one has proven it!), one can use them to rewrite quantum states so that they become simply probability distributions and unitary transformations so that they become doubly stochastic matrices. Most importantly, they also give a very clean way of rewriting the Born rule to be in purely probabilistic terms, never once making a mention of operators on a complex vector space. This sort of thing is music to a Quantum Bayesian's ears and gives the hope that all the mathematical structure of quantum theory might be derivable from a single, very basic physical scenario. It’s not the double-slit experiment that Feynman argued for in his Feynman Lectures, but one that might still appeal to his intuition and hope, “In reality, [this scenario] contains the only mystery [of quantum mechanics].” *Location: *B-106 @ Center for Astrophysics (60 Garden Street) *Directions: *After entering the lobby of the CfA, turn right to enter the hallway of the B building. In the hallway, turn right again, B-106 will be at the end of the hallway on the left side. _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

6 years, 11 months

[Aspuru-Guzik Group List] Excitonics Seminar: Tuesday, May 16, 4:30 PM

by Catherine M Bourgeois

A hybrid molecular-nanocrystal platform for photon upconversion May 16, 2017 at 4:30pm/36-428 Ming Lee Tang University of California, Riverside/ Department of Chemistry, and Material Science and Engineering [http://www.rle.mit.edu/excitonics/wp-content/uploads/2016/10/mingleetang.2.…] Third generation photovoltaics are inexpensive modules that promise power conversion efficiencies (PCEs) exceeding the thermodynamic Shockley-Queisser limit, perhaps by using up- or down-converters, intermediate band solar cells, tandem cells, hot carrier devices, or multi-exciton generation (MEG). Here, I introduce a hybrid platform comprised of semiconductor nanocrystals and organic semiconductor molecules that can efficiently upconvert light of visible and infrared wavelengths, at excitation densities below the solar flux. For example, colloidally synthesized core-shell lead sulfide -cadmium sulfide nanocrystals (NCs), in combination with tetracene derivatives, absorb near infrared (NIR) light and emit visible light at 560 nm with an upconversion quantum yield (QY) of 8.4 ± 1.0 %. This is achieved with NIR cw excitation at 3.2 mW/cm2, approximately three times lower than the available solar flux and about a million times lower excitation densities than state of the art lanthanide-based upconversion materials, for comparable QYs. The molecular and nanocrystal engineering here paves the way towards utilizing this hybrid upconversion platform in photovoltaics, photodetectors and photocatalysis. Ming Lee Tang is the Assistant Professor in the department of Chemistry, and Material Science and Engineering at the University of California, Riverside. Her research group focuses on the design, synthesis and characterization of novel hybrid organic-inorganic materials. Emphasis is on the synthesis of tailor-made organic ligands designed to control, enhance or mediate the optoelectronic properties of nanocrystals (NCs). The use of synthetic organic chemistry in ligand design enables desired properties to be embedded in a modular and scalable manner. These ligands allow the size, shape and material dependent properties of the NCs to be harnessed for energy, metamaterial and optoelectronic applications. The synthetic expertise in this group is complemented by single molecule spectroscopic and thin-film current-voltage measurements. The Center For Excitonics Is An Energy Frontier Research Center Funded By The U.S. Department Of Energy, Office Of Science And Office Of Basic Energy Sciences Light refreshments will be served.

6 years, 11 months

[Aspuru-Guzik Group List] [qip] three talks by Nicole Yunger Halpern this week

by Aram Harrow

1. On Friday she will speak in our group meeting (11am, 6-310) about: "Truly quantum Gibbs: Thermal state of a system whose charges don’t commute" 2. Tomorrow (Tues) she will speak at Harvard (1pm, Lyman 425) "Go scramble yourself! Out-of-time-ordered correlators, fluctuation relations, and quasiprobabilities" She will give this talk again at UMass Boston on Tues May 30 (2pm, Science Complex, Room ISC 1180). 3. A week from tomorrow (i.e. Tues May 23) she will speak at Harvard (11am, Pfizer Lecture Hall in Harvard's Mallinckrodt building). "MBL-mobile: Many-body-localized engine" Abstracts are: 1. During my last seminar at MIT, I asked you two questions about quantum information and thermodynamics: Consider a small system that exchanges heat and particles with a bath. The system thermalizes to the grand canonical ensemble. A quantum system may exchange conserved quantities, or “charges,” represented by operators that fail to commute. Can such a system thermalize? If so, what form does the thermal state have? These questions concern truly quantum thermodynamics. No one answered these questions when I asked you them. I can’t blame you: Deriving answers has taken three years. I’ll share what I’ve learned. References: Yunger Halpern, P. Faist, J. Oppenheim, and A. Winter, Nat. Comms 7, 12051 (2016). Yunger Halpern arXiv:1409.7845 (2014). A. Martín Alhambra, M. Woods, and NYH (in prep). 2. The out-of-time-ordered correlator (OTOC) reflects the scrambling of quantum information in many-body systems. The OTOC encodes time reversals and thermalization. So do fluctuation relations and quasiprobabilities. Fluctuation relations are equalities derived in nonequilibrium statistical mechanics. Quasiprobabilities are quantum generalizations of probabilities. I will unite these three concepts in a fluctuation-type relation, casting the OTOC as a moment of a summed quasiprobability. That quasiprobability—and so the OTOC—can be inferred from weak measurements. The weak-measurement scheme is expected to be implementable with superconducting qubits, cold atoms, ion traps, cavity QED, and perhaps NMR. This work offers conceptual and experimental insights into quantum-information scrambling, fluctuation relations, and quasiprobabilities. References (1) NYH, Phys. Rev. A 95, 012120 (2017). (2) NYH, B. Swingle, and J. Dressel, arXiv:1704.01971 (2017). 3. Many-body-localized (MBL) systems do not thermalize under their intrinsic dynamics. This athermality, we propose, can be harnessed to perform thermodynamic tasks. We illustrate by formulating an Otto engine cycle for a quantum many-body system. The system is ramped between thermal and MBL phases, if mesoscopic, or between weakly and strongly localized MBL regimes, in the thermodynamic limit. MBL systems’ energy-level correlations differ from thermal systems’. This discrepancy enhances the engine's reliability, precludes worst-case trials, and enables mesoscale engines to run in parallel in the thermodynamic limit. We estimate analytically and calculate numerically the engine's efficiency and per-cycle power. The efficiency mirrors the efficiency of the conventional thermodynamic Otto cycle. The per-cycle power scales linearly with the system size and inverse-exponentially with a localization length. This work introduces a thermodynamic lens onto MBL, which, having been characterized recently, can now be applied in thermodynamic tasks. Reference: Coming soon! Co-conspirators: Christopher D. White, Sarang Gopalakrishnan, Gil Refael _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

6 years, 11 months

[Aspuru-Guzik Group List] Fwd: Meeting with Mike Crommie May 16

by Siria Serrano

Dear Group, There are open spots to meet with Professor Crommie from UC Berkeley (abstract attached) at 3:30 and 4:30 tomorrow, May 16th. Please email Naomi directly if you'd like to meet him. Cheers, Siria ---------- Forwarded message ---------- From: Brave, Naomi <brave(a)seas.harvard.edu> Date: Mon, May 15, 2017 at 10:34 AM Subject: Re: Meeting with Mike Crommie May 16 To: "Capasso, Federico" <capasso(a)seas.harvard.edu>, Alan Aspuru-Guzik < alan(a)aspuru.com>, "Bell, David C." <dcb(a)seas.harvard.edu>, "Halperin, Bertrand I." <halperin(a)physics.harvard.edu>, "Ham, Donhee" < donhee(a)seas.harvard.edu>, Eric Heller <heller(a)physics.harvard.edu>, "Hoffman, Jenny" <jhoffman(a)physics.harvard.edu>, "Hu, Evelyn" < ehu(a)seas.harvard.edu>, "Kaxiras, Efthimios" <kaxiras(a)physics.harvard.edu>, Philip Kim <pkim(a)physics.harvard.edu>, "Loncar, Marko" < loncar(a)seas.harvard.edu>, "Yacoby, Amir" <yacoby(a)physics.harvard.edu>, "Westervelt, Robert M." <westervelt(a)seas.harvard.edu> Cc: "Belcher, Hannah" <hbelcher(a)fas.harvard.edu>, "Masse, Kathleen L." < kathmasse(a)seas.harvard.edu>, "aspuru.staff" <aspuru.staff(a)gmail.com> Here is Prof Crommie’s talk title and abstract On May 15, 2017, at 9:46 AM, Brave, Naomi <brave(a)seas.harvard.edu> wrote: Dear Faculty, Mike Crommie from UC Berkeley is giving a special Quantum Materials and Devices Seminar: Tuesday May 16th 12:00 noon Pierce 209 He has requested to meet with you during the day, and join you for lunch and/or dinner. Available times are; 10-11am Bob Westervelt 11am Open 12pm QMD Seminar 1pm Lunch at the faculty club 2:30pm Open 3:30 Open 4:30 Open 6pm Dinner with faculty Naomi Brave Managing Director Center for Integrated Quantum Materials Harvard University 29 Oxford Street Pierce Hall room 228 Cambridge, MA 02138 Tel (617) 495-1027 Fax (617) 495-9837 brave(a)seas.harvard.edu Naomi Brave Managing Director Center for Integrated Quantum Materials Harvard University 29 Oxford Street Pierce Hall room 228 Cambridge, MA 02138 Tel (617) 495-1027 Fax (617) 495-9837 brave(a)seas.harvard.edu -- *Siria Serrano* *Faculty Assistant* *Aspuru-Guzik Group* *Harvard University **Department of Chemistry and Chemical Biology* *12 Oxford St. M 136* *Cambridge, MA 02138* *P:** (617) 496-1716 <%28617%29%20496-1716>** F: **617-496-9411 <617-496-9411>*

6 years, 11 months

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aspuru-list May 2017