Zobrazeno 1 - 10
of 197
pro vyhledávání: '"Brus, Louis E."'
Autor:
Guo, Yinsheng, Yaffe, Omer, Hull, Trevor D., Owen, Jonathan S., Reichman, David R., Brus, Louis E.
We report a strongly temperature dependent luminescence Stokes shift in the electronic spectra of both hybrid and inorganic lead-bromide perovskite single crystals. This behavior stands in stark contrast to that exhibited by more conventional crystal
Externí odkaz:
http://arxiv.org/abs/1804.01509
Autor:
Zhao, S. Y. Frank, Elbaz, Giselle A., Bediako, D. Kwabena, Yu, Cyndia, Efetov, Dmitri K., Guo, Yinsheng, Ravichandran, Jayakanth, Min, Kyung-Ah, Hong, Suklyun, Taniguchi, Takashi, Watanabe, Kenji, Brus, Louis E., Roy, Xavier, Kim, Philip
Electrochemical intercalation is a powerful method for tuning the electronic properties of layered solids. In this work, we report an electro-chemical strategy to controllably intercalate lithium ions into a series of van der Waals (vdW) heterostruct
Externí odkaz:
http://arxiv.org/abs/1710.07877
Autor:
Guo, Yinsheng, Yaffe, Omer, Paley, Daniel W., Beecher, Alexander N., Hull, Trevor D., Szpak, Guilherme, Owen, Jonathan S., Brus, Louis E., Pimenta, Marcos A.
Publikováno v:
Phys. Rev. Materials 1, 042401 (2017)
Organic-inorganic coupling in the hybrid lead-halide perovskite is a central issue in rationalizing the outstanding photovoltaic performance of these emerging materials. Here we compare and contrast the evolution of structure and dynamics of the hybr
Externí odkaz:
http://arxiv.org/abs/1705.10691
Autor:
Raja, Archana, Chaves, Andrey, Yu, Jaeeun, Arefe, Ghidewon, Hill, Heather M., Rigosi, Albert F., Berkelbach, Timothy C., Nagler, Philipp, Schüller, Christian, Korn, Tobias, Nuckolls, Colin, Hone, James, Brus, Louis E., Heinz, Tony F., Reichman, David R., Chernikov, Alexey
The ability to control the size of the electronic bandgap is an integral part of solid-state technology. Atomically-thin two-dimensional crystals offer a new approach for tuning the energies of the electronic states based on the interplay between the
Externí odkaz:
http://arxiv.org/abs/1702.01204
Autor:
Raja, Archana, Brus, Louis E.
Publikováno v:
Journal of Chemical Physics; 7/14/2023, Vol. 159 Issue 2, p1-5, 5p
Autor:
Yaffe, Omer, Guo, Yinsheng, Tan, Liang Z., Egger, David A., Hull, Trevor, Stoumpos, Constantinos C., Zheng, Fan, Heinz, Tony F., Kronik, Leeor, Kanatzidis, Mercouri G., Owen, Jonathan S, Rappe, Andrew M., Pimenta, Marcos A., Brus, Louis E.
Publikováno v:
Phys. Rev. Lett. 118, 136001 (2017)
Hybrid lead-halide perovskites have emerged as an excellent class of photovoltaic materials. Recent reports suggest that the organic molecular cation is responsible for local polar fluctuations that inhibit carrier recombination. We combine low frequ
Externí odkaz:
http://arxiv.org/abs/1604.08107
Autor:
Berciaud, Stéphane, Li, Xianglong, Htoon, Han, Brus, Louis E., Doorn, Stephen K., Heinz, Tony F.
Publikováno v:
Nano Lett., 13, 3517 (2013)
We report a comprehensive study of the two-phonon inter-valley (2D) Raman mode in graphene monolayers, motivated by recent reports of asymmetric 2D-mode lineshapes in freestanding graphene. For photon energies in the range $1.53 \rm eV - 2.71 \rm eV$
Externí odkaz:
http://arxiv.org/abs/1305.7025
Publikováno v:
ACS Nano, 2011, 5 (5), pp 4123-4130
Nanometer-scale graphene objects are attracting much research interest because of newly emerging properties originating from quantum confinement effects. We present Raman spectroscopy studies of graphene nanoribbons (GNRs) which are known to have non
Externí odkaz:
http://arxiv.org/abs/1201.4298
Autor:
Yu, Young-Jun, Han, Melinda Y., Berciaud, Stephane, Georgescu, Alexandru B., Heinz, Tony F., Brus, Louis E., Kim, Kwang S., Kim, Philip
We investigate the temperature distributions of Joule self-heated graphene nanoribbons (GNRs) with a spatial resolution finer than 100 nm by scanning thermal microscopy (SThM). The SThM probe is calibrated using the Raman G mode Stokes/anti-Stokes in
Externí odkaz:
http://arxiv.org/abs/1110.2984
Autor:
Ryu, Sunmin, Liu, Li, Berciaud, Stephane, Yu, Young-Jun, Liu, Haitao, Kim, Philip, Flynn, George W., Brus, Louis E.
Publikováno v:
Nano Letters 10, 4944 (2010)
Using micro-Raman spectroscopy and scanning tunneling microscopy, we study the relationship between structural distortion and electrical hole doping of graphene on a silicon dioxide substrate. The observed upshift of the Raman G band represents charg
Externí odkaz:
http://arxiv.org/abs/1011.3108