Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Darcy D. Wanger"'
Publikováno v:
Nano Letters. 13:5907-5912
We present a quantitative measurement of the number of trapped carriers combined with a measurement of exciton quenching to assess limiting mechanisms for current losses in PbS-quantum-dot-based photovoltaic devices. We use photocurrent intensity dep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87d25fcfcc7d47f0f6ae411e61b07ad2
https://doi.org/10.1021/nl402886j
https://doi.org/10.1021/nl402886j
Autor:
Darcy D. Wanger, Andrew P. Beyler, Ou Chen, Lisa F. Marshall, Xavier Brokmann, Moungi G. Bawendi, Daniel K. Harris, Jian Cui
Publikováno v:
Nature Chemistry. 5:602-606
The spectral linewidth of an ensemble of fluorescent emitters is dictated by a combination of the single emitter linewidths and sample inhomogeneities. For semiconductor nanocrystals, efforts to tune ensemble linewidths for optical applications have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dd847bf8ee8e2b5ed31556627ef980c4
https://doi.org/10.1038/nchem.1654
https://doi.org/10.1038/nchem.1654
Autor:
Scott M. Geyer, Darcy D. Wanger, Alexi C. Arango, Timothy P. Osedach, Moungi Bawendi, Ni Zhao, Liang-Yi Chang, Vladimir Bulovic
Publikováno v:
Advanced Materials. 22:5250-5254
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::645a6ff760c69d2143445ef3f40fa0e1
https://doi.org/10.1002/adma.201002589
https://doi.org/10.1002/adma.201002589
Autor:
Christopher J. Tassone, Benjamin J. Schwartz, Sarah H. Tolbert, Darcy D. Wanger, Alexander L. Ayzner
Publikováno v:
The Journal of Physical Chemistry C. 112:18711-18716
We examine how thermal annealing affects the fullerene network in conjugated polymer bulk heterojunction (BHJ) solar cells. We begin by creating electron-only devices with a BHJ geometry by blending the fullerene derivative [6,6]-phenyl-C61-butyric-a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cadd0f271ee1f4b2cb226f1d9431660d
https://doi.org/10.1021/jp8076497
https://doi.org/10.1021/jp8076497
Autor:
Francesco Marsili, Tamar Mentzel, Darcy D. Wanger, David B. Strasfeld, Moungi G. Bawendi, Vitor R. Manfrinato, Hee-Sun Han, Karl K. Berggren, Jose Pablo Arrieta
Publikováno v:
Darcy Wanger
We demonstrated a technique to control the placement of 6 nm-diameter CdSe and 5 nm-diameter CdSe/CdZnS colloidal quantum dots (QDs) through electron-beam lithography. This QD-placement technique resulted in an average of three QDs in each cluster, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9098a479efce5b0083ebb40ff64f60d4
http://hdl.handle.net/1721.1/84485
http://hdl.handle.net/1721.1/84485
Autor:
Brian J. Walker, Moungi G. Bawendi, Darcy D. Wanger, David B. Strasfeld, Tamar Mentzel, Marc Kastner, Nirat Ray
Publikováno v:
Nano letters. 12(8)
We present the first semiconductor nanocrystal films of nanoscale dimensions that are electrically conductive and crack-free. These films make it possible to study the electrical properties intrinsic to the nanocrystals unimpeded by defects such as c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51024537c4098dc019b410066eeab484
https://pubmed.ncbi.nlm.nih.gov/22784104
https://pubmed.ncbi.nlm.nih.gov/22784104
Autor:
Vladimir Bulovic, Liang-Yi Chang, David B. Strasfeld, Moungi G. Bawendi, Trisha L. Andrew, Ni Zhao, Darcy D. Wanger, Timothy P. Osedach, Patrick O. Brown
Publikováno v:
ACS nano. 6(4)
We investigate the bias-stress effect in field-effect transistors (FETs) consisting of 1,2-ethanedithiol-treated PbS quantum dot (QD) films as charge transport layers in a top-gated configuration. The FETs exhibit ambipolar operation with typical mob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8014576a01f7e56b8022011157fa47ef
https://pubmed.ncbi.nlm.nih.gov/22480161
https://pubmed.ncbi.nlm.nih.gov/22480161
Publikováno v:
Nano letters. 12(2)
We fabricated planar PbS quantum dot devices with ohmic and Schottky type electrodes and characterized them using scanning photocurrent and photovoltage microscopies. The microscopy techniques used in this investigation allow for interrogation of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e50391a5b6ceeca1176cdec46ef803dd
https://pubmed.ncbi.nlm.nih.gov/22250976
https://pubmed.ncbi.nlm.nih.gov/22250976
Autor:
Patrick O. Brown, Darcy D. Wanger, Timothy P. Osedach, Liang-Yi Chang, Ni Zhao, Moungi G. Bawendi, Vladimir Bulovic, Richard R. Lunt
Publikováno v:
Nano letters. 11(7)
The ability to engineer interfacial energy offsets in photovoltaic devices is one of the keys to their optimization. Here, we demonstrate that improvements in power conversion efficiency may be attained for ZnO/PbS heterojunction quantum dot photovol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d0064894278c0189e1aeb7096934a10
https://pubmed.ncbi.nlm.nih.gov/21661734
https://pubmed.ncbi.nlm.nih.gov/21661734
Autor:
Scott M. Geyer, Vladimir Bulovic, Darcy D. Wanger, Maddalena Binda, Timothy P. Osedach, Alexi C. Arango, Moungi G. Bawendi, Liang-Yi Chang, Ni Zhao
Publikováno v:
ACS nano. 4(7)
We fabricate PbS colloidal quantum dot (QD)-based solar cells using a fullerene derivative as the electron-transporting layer (ETL). A thiol treatment and oxidation process are used to modify the morphology and electronic structure of the QD films, r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fc7d5afabe174ee4e453520f6e658e3
https://pubmed.ncbi.nlm.nih.gov/20590129
https://pubmed.ncbi.nlm.nih.gov/20590129