aspuru-list May 2010

aspuru-list@lists.fas.harvard.edu

20 participants
48 discussions

[Aspuru-Guzik group list] REMINDER: May 24, 2010 - Sebastian Reineke - Excitonics Seminar

by rtavilla＠rle.mit.edu

Center for Excitonics Seminar Series Announcement 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 The Center for Excitonics invites you to join us at the next seminar of the Spring 2010 series. Please forward this information on to others who might be interested in attending this and other center seminars. Title: Concepts for Phosphorescent Organic LEDs at High Brightness Presenter: Sebastian Reineke Organization: Institut fur Angewandte Photophysik, Dresden Date: MONDAY - May 24, 2010 Time: 3:00 - 4:00pm Place: Haus Room 36-428 Center URL: www.rle.mit.edu/excitonics Seminar URL: www.rle.mit.edu/excitonics/reineke-052410.html Abstract Organic light-emitting diodes (OLEDs) are next generation light sources which are especially attractive because they promise very high conversion efficiencies. The introduction of phosphorescent emitter materials was the key to enable internal quantum efficiencies approaching unity. However, due to the much longer excited state lifetime of triplet states even of state-of-the-art phosphors, bimolecular quenching limits the efficiency of such devices at high brightness – the latter is needed for future applications based on OLEDs. In this talk, I will first discuss triplet-triplet annihilation (TTA) in an archetype host-guest system for green phosphorescence. Here, different models describing TTA are applied leading to the conclusion that emitter aggregation strongly enhances diffusion of excited states and, consequently, reduces the device efficiency. Based on these findings, I will discuss two concepts that improve the high brightness performance of phosphorescent OLEDs. In the second part of the talk, I will focus on a novel concept for highly efficient white OLEDs. It makes use of a blue sub-emission layer, where host and guest triplet levels are in resonance, and thin intrinsic interlayers for the exciton management. This enables lower driving voltages and by that higher power efficiencies. In addition, I will present concepts for improved light outcoupling. Bio Sebastian Reineke is currently working as a Ph.D. candidate under the supervision of Prof. Karl Leo at the Institut für Angewandte Photophysik, Dresden. His main research interests are exciton dynamics and related phenomena in organic semiconductors with respect to their applications in optoelectronic devices. Since 3 years, he is tightly involved in the development of highly efficient white OLEDs. He was born in 1979 and studied physics in Heidelberg and Dresden. In 2005, he obtained the Diplomphysiker degree from the Technische Universität (TU) Dresden under the supervision of Prof. Karl Leo. In 2006, acknowledging his diploma work in the field of organic LEDs, he was awarded with the Professor-Schwabe-Preis of the department of chemistry of the TU Dresden.

13 years, 11 months

[Aspuru-Guzik group list] QuEBS 2010 Workshop Deadlines

by Peg Tamiso

Greetings, I would like to remind you of two deadlines approaching on *May 26th*. *Registration:* If you plan to attend the Workshop but have not registered, please do so (http://quebs2010.wordpress.com/registration/) as the deadline is *May 26th*. Invited speakers, please read instructions regarding registration on your invitation letter. *Hotel Reservations:* You can make a reservation by calling the hotel (1-888-421-1442) or online (https://resweb.passkey.com/go/8f143d7b). If you call the hotel, please reference the “Harvard-QuEBS 2010″ room block to receive the negotiated room rate. To receive the discounted room rate, you must book your hotel reservations by *May 26, 2010*. If you would like to extend your stay, please contact Marissa Ferreira directly (617-441-6480 or Marissa.Ferreira(a)hyatt.com). Invited speakers, please refer to your invitation letter for hotel reservation instructions. Additionally, the Workshop itinerary is now available at http://quebs2010.wordpress.com/program/ on the QuEBS 2010 website. Invited and Contributed speakers, please let us know as soon as possible if there is a scheduling conflict. Thank you, -- Peg Tamiso Administrative Assistant Aspuru-Guzik Research Group Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge, MA 02138 617.496.9964 office 617.496.9411 fax http://aspuru.chem.harvard.edu/

13 years, 11 months

[Aspuru-Guzik group list] Meeting with Andrei Tokmakoff

by Leslie Vogt

Hi guys, Andrei Tokmakoff is the pchem seminar speaker this week. Our group has a chance to meet with him from 11:30-noon tomorrow in the lounge area. The seminar will be at 4pm in Pfizer. *"The Dynamics of Proton and Hydroxide Transport in Water"* Cheers, Leslie -- Leslie Vogt Aspuru-Guzik Group Chemistry and Chemical Biology Harvard University

13 years, 11 months

[Aspuru-Guzik group list] an out-of-the-box idea

by Semion Saikin

see: http://www.siliconvalley.com/ci_15112627?nclick_check=1

13 years, 11 months

[Aspuru-Guzik group list] Fwd: new antivirus (ESET replaces McAfee)

by Sangwoo Shim

FYI; I saw this from another mailing list. In short, FAS IT decided to replace McAfee with another one, and you can get it from here: http://www.fas-it.fas.harvard.edu/eset-installation Best wishes, Sangwoo ---------- Forwarded message ---------- From: Steven Finch <sfinch(a)fas.harvard.edu> Date: Tue, May 18, 2010 at 11:08 AM Subject: new antivirus (ESET replaces McAfee) To: all(a)stat.harvard.edu Hi everyone, Almost all of our Windows machines have McAfee as antivirus protection. FAS IT has decided to replace McAfee with new software called ESET (why? see the email below). It is necessary for all Windows users to perform the replacement on each of their machines, following the instructions in http://www.fas-it.fas.harvard.edu/eset-installation I've just tested the procedure and everything went smoothly for me. If you need help in doing this, please email or call me. (Mac users or students don't have to do anything right now.) Since we depend on periodic automated updates to antivirus to fight off the latest viruses, please replace McAfee by ESET soon! Thank you, Steve On 5/7/2010 12:24 PM, FAS IT wrote: As discussed in the last Security Liaisons meeting, ESET has been chosen as the FAS Workstation AntiVirus client. The product simply outperformed McAfee and Kaspersky: 30% reduction in resource consumption Faster boot and application launch time Small, bandwidth friendly updates (typically <50k) Accurate detection, decreased false-positives The FAS McAfee license expires in June and we will need your help in ensuring workstations continue to be protected. The Windows product, which rips and replaces McAfee, is available for download now at the FAS-IT Software Downloads page: http://downloads.fas.harvard.edu/download?platform=win. The above client is for Faculty and Staff Windows machines. We anticipate having Home and Student licensing available shortly. We have a release-candidate Mac client which can be distributed on request. -- Sangwoo Shim PhD student in Chemical Physics Harvard University 12 Oxford St #63, MA 02138, USA

13 years, 11 months

[Aspuru-Guzik group list] Fwd: [Users] GPU cluster testbed (Dirac) available by request

by Alan Aspuru-Guzik

Dear all, Notice this opportunity. Perhaps this is where we should do the QMC, Kenta? Alán Aspuru-Guzik | Assistant Professor Harvard University | Department of Chemistry and Chemical Biology 12 Oxford Street, Room M113 | Cambridge, MA 02138 (617)-384-8188 | http://aspuru.chem.harvard.edu ---------- Forwarded message ---------- From: Francesca Verdier <fverdier(a)lbl.gov> Date: Mon, May 17, 2010 at 6:17 PM Subject: [Users] GPU cluster testbed (Dirac) available by request To: users(a)nersc.gov Dear NERSC users, NERSC has installed a general purpose GPU computing (GPGPU) testbed named Dirac. If you are interested in using GPUs for your work, you may apply: http://www.nersc.gov/nusers/systems/dirac/diracreq.php Please keep in mind that this is an experimental system, and not a NERSC production system. There is limited support for Dirac and help for "how to use" issues is via a discussion email list. Information on Dirac: http://www.nersc.gov/nusers/systems/dirac/ Sincerely -- Francesca Verdier email: fverdier(a)lbl.gov Department Head, NERSC Services phone: 510-486-7193 _______________________________________________ Users mailing list Users(a)nersc.gov

13 years, 11 months

[Aspuru-Guzik group list] QuEBS 2010 Workshop Itinerary

by Peg Tamiso

Greetings, We are pleased to share the QuEBS 2010 Workshop itinerary located at http://quebs2010.wordpress.com/program/. Please don't hesitate to contact me if I can be of further assistance. Best regards, -- Peg Tamiso Administrative Assistant Aspuru-Guzik Research Group Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge, MA 02138 617.496.9964 office 617.496.9411 fax http://aspuru.chem.harvard.edu/

13 years, 11 months

[Aspuru-Guzik group list] [qip] Tuesday

by Edward Farhi

Dear Quanta I am away and only back on Wednesday. Please go ahead and meet without me on Tuesday at 11:00. I assume that Bei will be around as she is speaking on Monday at 4:30. See you when I return. Best, Eddie ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: Edward Farhi Cecil and Ida Green Professor of Physics Director Center for Theoretical Physics Massachusetts Institute of Technology 6-300 Cambridge MA 02139 617 253 4871 ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: _______________________________________________ qip mailing list qip(a)mit.edu http://mailman.mit.edu/mailman/listinfo/qip

13 years, 11 months

[Aspuru-Guzik group list] publication acknowledgments

by Anna B. Shin

Dear Group, Please double-check with me the sponsor award numbers that you include in the Acknowledgments section of your papers. I noticed two errors and the papers are now published. :( Thx, Anna Anna B. Shin Laboratory Administrator Aspuru-Guzik Research Group Department of Chemistry and Chemical Biology Harvard University 12 Oxford Street Cambridge, MA 02138 617.496.9964 office 617.694.9879 cell 617.496.9411 fax http://aspuru.chem.harvard.edu/

13 years, 11 months

[Aspuru-Guzik group list] Group meeting Today Friday 2:30pm @ M102

by Cesar A. Rodriguez-Rosario

Dear group, Today, Dr. Kavan Modi from the Centre for Quantum Technologies in Singapore will be giving the group meeting talk. We will meet in Mallinckrodt 102 (Division Room). Cesar (while Alejandro is in Ireland) -- Cesar A. Rodriguez-Rosario, Postdoctoral Fellow Harvard University Department of Chemistry and Chemical Biology, Box#34 12 Oxford St, Cambridge, MA, 02138, USA rodriguez(a)chemistry.harvard.edu

13 years, 11 months

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aspuru-list May 2010