aspuru-list April 2016

aspuru-list@lists.fas.harvard.edu

25 participants
54 discussions

[Aspuru-Guzik Group List] visit of Bob Blankenship, May 2

by Semion Saikin

Hi Guys, Prof. Robert Blankenship from Washington University in Saint Louis https://wubio.wustl.edu/blankenship will visit our group on Monday, May 2. He is a world expert in photosynthetic bacteria. If you would like to meet him please let me know. He will be around from the morning till 3-4pm only. I will also ask him to give a talk in our group, but cannot tell the specific time yet, need to adjust with Alan's schedule. best, Semion -- ******************************************** Semion K. Saikin, PhD Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street, Cambridge, MA 02138 email: saykin(a)fas.harvard.edu phone: (619)212-6649 ********************************************

8 years, 2 months

[Aspuru-Guzik Group List] [qip] today

by Edward Farhi

Hi Quanta We are meeting today Friday the 8th at 11:00 in 6-310. My little book says that Salvatore Mandra will be speaking so I hope he knows! See you there. Eddie --------------------------------------------------------- Edward Farhi Cecil and Ida Green Professor of Physics Director Center for Theoretical Physics Massachusetts Institute of Technology 6-300 Cambridge Massachusetts 02139 617-253-4871 --------------------------------------------------------- _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

8 years, 2 months

[Aspuru-Guzik Group List] ITAMP lunch seminar - Francesco Casola, Harvard (Thu, 02/18)

by Igor Pikovski

As we don't expect any snow storms this week, we will have the talk by Francesco Casola (group Ron Walsworth), which had to be cancelled two weeks ago. See details below. Please note that the ITAMP seminars will now be held on Thursdays. *ITAMP Topical Lunch Discussion* Date: Thursday, February 18th Time: 12:00-1:30 pm Pizza will be served. 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, and B-106 is there. *Speaker:* Francesco Casola(Harvard) *Title:*Harnessing one (electron spin) to measure them all *Abstract: *In recent years, the coherent manipulation and optical addressing of a single electronic spin in nitrogen-vacancy (NV) centers in diamond has emerged as a potential non-perturbative tool to obtain nanoscale spatial and quantitative local information of condensed matter magnetism. In this talk I will present fundamental concepts and review recent results of space-resolved NV magnetometry in the study of novel spin textures and collective spin dynamics of correlated electron systems. Beyond magnetic sensing applications, I will finally present ideas and outline challenges to observe coherent interactions between NVs and fundamental excitation modes in collinear ferromagnets. On 2/5/2016 10:06 AM, Igor Pikovski wrote: > Dear all, > > Due to the closure of the cfa, we will postpone today's Itamp seminar > to another day. > > Best, > Igor > > On 2/3/2016 1:07 PM, Igor Pikovski wrote: >> *ITAMP Topical Lunch Discussion* >> >> Date: Friday, February 5th >> Time: 12:00-1:30 pm >> Pizza will be served. >> >> 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, and >> B-106 is there. >> >> *Speaker:* Francesco Casola(Harvard) >> >> *Title:*Harnessing one (electron spin) to measure them all >> >> *Abstract: *In recent years, the coherent manipulation and optical >> addressing of a single electronic spin in nitrogen-vacancy (NV) >> centers in diamond has emerged as a potential non-perturbative tool >> to obtain nanoscale spatial and quantitative local information of >> condensed matter magnetism. In this talk I will present fundamental >> concepts and review recent results of space-resolved NV magnetometry >> in the study of novel spin textures and collective spin dynamics of >> correlated electron systems. Beyond magnetic sensing applications, I >> will finally present ideas and outline challenges to observe coherent >> interactions between NVs and fundamental excitation modes in >> collinear ferromagnets. >> >> -- >> Dr. Igor Pikovski >> Institute for Theoretical Atomic, Molecular and Optical Physics (ITAMP) >> Harvard-Smithsonian Center for Astrophysics >> 60 Garden St, MS-14; Cambridge, MA 02138, USA >> Tel.: +1 (617) 496-7613 >> e-mail:igor.pikovski@cfa.harvard.edu >> www.cfa.harvard.edu/~igor.pikovski/ > > -- > Dr. Igor Pikovski > Institute for Theoretical Atomic, Molecular and Optical Physics (ITAMP) > Harvard-Smithsonian Center for Astrophysics > 60 Garden St, MS-14; Cambridge, MA 02138, USA > Tel.: +1 (617) 496-7613 > e-mail:igor.pikovski@cfa.harvard.edu > www.cfa.harvard.edu/~igor.pikovski/ -- Dr. Igor Pikovski Institute for Theoretical Atomic, Molecular and Optical Physics (ITAMP) Harvard-Smithsonian Center for Astrophysics 60 Garden St, MS-14; Cambridge, MA 02138, USA Tel.: +1 (617) 496-7613 e-mail: igor.pikovski(a)cfa.harvard.edu www.cfa.harvard.edu/~igor.pikovski/

8 years, 2 months

[Aspuru-Guzik Group List] TODAY - Excitonics Perovskite Seminar at 3PM in 34-401B

by Catherine M Bourgeois

Please post, forward to your groups, and note time and location: 3 PM/ RM 34-401B CENTER FOR EXCITONICS Presents: Upscaling Perovskite Solar Cells via Industrial Roll-to-Roll Processes April 7, 2016 at 3:00PM/34-401B Doojin Vak Commonwealth Scientific and Industrial Research Organisation, Australia [Doojin_Vak-2] Perovskite solar cells have emerged as the most promising third-generation solar cells with a rapid increase in record efficiencies. However, most of these devices have been made by processes that are not scalable, typically spin coating. The next challenge in this field will be translating lab-scale developments to large-scale production processes, which will preferably include a cost-competitive roll-to-roll printing process. Commonwealth Scientific and Industrial Research Organization (CSIRO), a national science agency of Australia, has built a printing facility for large-scale printed solar cells up to 30 cm wide via a roll-to-roll process. In addition to the manufacturing facility, a 3D printer-based slot-die coater was developed as a lab-to-fab translation tool and used to fabricate printed perovskite solar cells with over 15% power conversion efficiency. The 3D printing platform provides automated control of x,y,z-positioning, coating speed, acceleration and temperature. This degree of control allows us to mimic and develop the printing conditions appropriate for a typical roll-to-roll manufacturing process. The processes developed in a batch process have now been transferred to a roll-to-roll coater. Recent progress on the translation process for perovskite solar cells will be presented. Dr Doojin Vak was born in South Korea and he received PhD from Department of Materials Science and Engineering in GIST under the supervision of Prof. Dong-Yu Kim. After completing a PhD in materials chemistry for organic optoelectronic applications, he spent 2 years on fabrication of organic photovoltaics and organic light-emitting diodes in the Heeger Center for Advanced Materials at GIST. He joined Prof. Andrew Holmes group in The University of Melbourne in 2007 as a post-doctoral researcher and started working on the development of large-scale printed solar cells as a key researcher in the Victorian Organic Solar Consortium (VICOSC). After joining CSIRO as a research scientist in 2010, he continued the activity on printed solar cells. Since 2014, he has been working on perovskite based printed solar cells and demonstrated the world-first slot-die coated perovskite solar cell. This talk is part of the Perovskites Seminar Series organized by Sam Stranks and sponsored by the Center for Excitonics. For more info contact Sam: stranks(a)mit.edu<mailto:stranks@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.

8 years, 2 months

[Aspuru-Guzik Group List] Thesis Defense Tomorrow

by Jacob Sanders

Hi group, Just a reminder that I will be defending my thesis, "Compressed Sensing for Chemistry," tomorrow morning (Thursday) at 11:00 AM in the Division Room. Hope to see all of you there! There will be no group meeting tomorrow afternoon. Cheers, Jacob

8 years, 2 months

[Aspuru-Guzik Group List] [IACS-events] Mark Your Calendars for "Artificial Intelligence: Its Future and Ours" on April 12 @5pm

by Baker, Natasha R.

Please mark your calendars for Tuesday, 12 April at 5:00PMfor presentations and a panel discussion on [cid:image002.jpg@01D19018.549A53B0] Each speaker will give a brief presentation and then participate in a panel discussion moderated by Stuart Shieber, PhD. A reception will follow the event. Presentations David Cox, PhD - "Walking the (Increasingly Blurry) Line Between Artificial and Biological Intelligence" Julie Shah, PhD - "Humans and Machines of Like Mind: The Future of Team Performance" Sendhil Mullainathan, PhD - "An Anthropomorphic Bias" Jonathan Zittrain, JD - "Decisions without Reasons" _______________________________________________ Iacs-events mailing list https://lists.seas.harvard.edu/mailman/listinfo/iacs-events

8 years, 2 months

[Aspuru-Guzik Group List] Theochem talk today, 4pm

by Jennifer Wei

Hi everyone, Just a reminder that Prof. Ksenia Bravaya's Theochem talk is today at MIT in the usual place. Could I get some help bringing snacks and drinks to Theochem? We could meet at 3:20p in the lobby to head to CVS to buy snacks. Thanks! Jennifer

8 years, 2 months

[Aspuru-Guzik Group List] A paper for Excitonics subgroup

by Semion Saikin

Hi guys, If you're interested in exciton transport, here is an interesting experimental paper that appeared in Nature. best, Semion -- ******************************************** Semion K. Saikin, PhD Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street, Cambridge, MA 02138 email: saykin(a)fas.harvard.edu phone: (619)212-6649 ********************************************

8 years, 2 months

[Aspuru-Guzik Group List] Excitonics Perovskite Seminar

by Catherine M Bourgeois

8 years, 2 months

[Aspuru-Guzik Group List] Excitonics Seminar: Delia Milliron - TODAY- April 5 - 4:30pm in 34-401A

by Catherine M Bourgeois

PLEASE NOTE Room number - 34-401A Please post and forward to your groups: CENTER FOR EXCITONICS SEMINAR SERIES presents: Plasmonic metal oxide nanocrystals April 5, 2016 at 4:30pm/34-401A Delia Milliron Department of Chemical Engineering, The University of Texas at Austin [Delia-Milliron.01] Degenerately doped metal oxide semiconductors, like ITO, exhibit plasmonic resonance at near and mid-infrared wavelengths tunable by varying their composition. Nanocrystals of many such materials have now been synthesized and applications are emerging that leverage the responsiveness of their localized surface plasmon resonance (LSPR) to electronic charging and discharging. For example, we are developing a new class of electrochromic glass that can dynamically control heat loads and daylighting in buildings to save energy and enhance comfort of building occupants. Further applications of these novel plasmonic nanocrystals will hinge, in part, on their ability to concentrate infrared light into nanoscale volumes and to enhance electronic and vibrational state transitions via associated field enhancement effects. Through simulations, we have predicted high field enhancement factors exceeding 300x for faceted nanocrystals. Experimentally, we can assess the potential of plasmonic oxide nanocrystals for field enhancement by observing the homogeneous LSPR linewidth, which is inversely related to the dephasing time. We have sought to distinguish this intrinsic linewidth from the heterogeneous broadening that is always present for colloidal nanoparticles. Measuring LSPR spectra of individual nanocrystals by tip-enhanced synchrotron FTIR spectroscopy we find single nanocrystals can have linewidths less than half of the corresponding ensembles. Thus, the dephasing times are long and plasmonic oxide nanocrystals have great potential for diverse applications in energy. I will conclude with an outlook on how materials chemistry enables the tuning of LSPR properties by design. Delia J. Milliron is an Associate Professor in the McKetta Department of Chemical Engineering at the University of Texas at Austin and a Fellow of the Henry Beckman Professorship. She also serves as an Associate Editor for the journal Nano Letters. Dr. Milliron received her PhD in Chemistry from the University of California, Berkeley, in 2004. From 2004 to 2008 she worked for IBM's research division, initially as a postdoctoral researcher and subsequently as a member of the research staff. In 2008, she joined the research staff at the Molecular Foundry, Lawrence Berkeley National Lab, where she served as the Director of the Inorganic Nanostructures Facility and later as the Deputy Director. Dr. Milliron's awards include a Sloan Research Fellowship, a DOE Early Career award and a Resonate Award from Caltech's Resnick Institute. Her research is motivated by the potential for nanomaterials to introduce new functionality to and reduce manufacturing costs of energy technologies. Her group's activities span from the fundamental chemistry and assembly pathways of nanomaterials to device integration and characterization. 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

8 years, 2 months

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aspuru-list April 2016