Zobrazeno 1 - 10
of 260
pro vyhledávání: '"Nayak Pabitra K."'
Autor:
Man, Gabriel J., Kalinko, Aleksandr, Phuyal, Dibya, Nayak, Pabitra K., Rensmo, Håkan, Butorin, Sergei M.
Point defect tolerance in materials, which extends operational lifetime, is essential for societal sustainability, and the creation of a framework to design such properties is a grand challenge in the material sciences. Using three prototypical lead
Externí odkaz:
http://arxiv.org/abs/2305.04014
Autor:
Tiwari Vandana, Duan Hong-Guang, Jha Ajay, Nayak Pabitra K., Thorwart Michael, Snaith Henry J., Miller R. J. Dwayne
Publikováno v:
EPJ Web of Conferences, Vol 205, p 06018 (2019)
We have employed ultrafast transient-grating and two- dimensional electronic spectroscopy to probe dynamics of photo-excited CH3NH3PbI3 thin films with 16-fs temporal resolution. We distinctly capture the 30-fs decay of excitons, weakly coupled to th
Externí odkaz:
https://doaj.org/article/f2d1f3718fa74ea98e5c5607c61aacab
Autor:
Ziegler, Jonas D., Lin, Kai-Qiang, Meisinger, Barbara, Zhu, Xiangzhou, Kober-Czerny, Manuel, Nayak, Pabitra K., Vona, Cecilia, Taniguchi, Takashi, Watanabe, Kenji, Draxl, Claudia, Snaith, Henry J., Lupton, John M., Egger, David A., Chernikov, Alexey
Two-dimensional halide perovskites are among intensely studied materials platforms profiting from solution based growth and chemical flexibility. They feature exceptionally strong interactions among electronic, optical as well as vibrational excitati
Externí odkaz:
http://arxiv.org/abs/2201.11589
Autor:
Man, Gabriel J., Kamal, Chinnathambi, Kalinko, Aleksandr, Phuyal, Dibya, Acharya, Joydev, Mukherjee, Soham, Nayak, Pabitra K., Rensmo, Håkan, Odelius, Michael, Butorin, Sergei M.
Publikováno v:
Nat. Commun. 13, 3839 (2022)
Hot carrier solar cells hold promise for exceeding the Shockley-Queisser limit. Slow hot carrier cooling is one of the most intriguing properties of lead halide perovskites and distinguishes this class of materials from competing materials used in so
Externí odkaz:
http://arxiv.org/abs/2109.08587
Autor:
Man, Gabriel J., Sterling, Cody M., Kamal, Chinnathambi, Simonov, Konstantin A., Svanström, Sebastian, Acharya, Joydev, Johansson, Fredrik O. L., Giangrisostomi, Erika, Ovsyannikov, Ruslan, Huthwelker, Thomas, Butorin, Sergei M., Nayak, Pabitra K., Odelius, Michael, Rensmo, Håkan
Publikováno v:
Phys. Rev. B 104, 041302 (2021)
Organic-inorganic halide perovskites have been intensively re-investigated due to their applications, yet the opto-electronic function of the organic cation remains unclear. Through organic-selective resonant Auger electron spectroscopy measurements
Externí odkaz:
http://arxiv.org/abs/2011.02016
Autor:
Duan, Hong-Guang, Tiwari, Vandana, Jha, Ajay, Berdiyorov, Golibjon R., Akimov, Alexey, Vendrell, Oriol, Nayak, Pabitra K., Snaith, Henry J., Thorwart, Michael, Li, Zheng, Madjet, Mohamed E., Miller, R. J. Dwayne
Organic-inorganic perovskites have shown great promise towards their application in optoelectronics. The success of this class of material is dictated by the complex interplay between various underlying microscopic phenomena. The structural dynamics
Externí odkaz:
http://arxiv.org/abs/2004.04970
Autor:
Duan, Hong-Guang, Li, Xin, Tiwari, Vandana, Ye, Hanyang, Nayak, Pabitra K., Zhu, Xiao-Lei, Li, Zheng, Martinez, Todd J., Thorwart, Michael, Miller, R. J. Dwayne
Singlet fission is a spin-allowed exciton multiplication process in organic semiconductors that converts one spin-singlet exciton to two triplet excitons. It offers the potential to enhance solar energy conversion by circumventing the Shockley-Queiss
Externí odkaz:
http://arxiv.org/abs/1910.03338
Autor:
Kabakova, Irina V., Azuri, Ido, Chen, Zhuoying, Nayak, Pabitra K., Snaith, Henry J., Kronik, Leeor, Paterson, Carl, Bakulin, Artem A., Egger, David A.
Hybrid organic-inorganic perovskites (HOIPs) have recently emerged as highly promising solution-processable materials for photovoltaic (PV) and other optoelectronic devices. HOIPs represent a broad family of materials with properties highly tuneable
Externí odkaz:
http://arxiv.org/abs/1801.03434
Autor:
Sendner, Michael, Nayak, Pabitra K., Egger, David A., Beck, Sebastian, Müller, Christian, Epding, Bernd, Kowalsky, Wolfgang, Kronik, Leeor, Snaith, Henry J., Pucci, Annemarie, Lovrinčić, Robert
Publikováno v:
Materials Horizons, 2016, 3, 613-620
Lead-halide perovskites are promising materials for opto-electronic applications. Recent reports indicated that their mechanical and electronic properties are strongly affected by the lattice vibrations. Herein we report far-infrared spectroscopy mea
Externí odkaz:
http://arxiv.org/abs/1607.08541
Autor:
Levine, Igal, Nayak, Pabitra K., Wang, Jacob Tse-Wei, Sakai, Nobuya, Van Reenen, Stephan, Brenner, Thomas M., Mukhopadhyay, Sabyasachi, Snaith, Henry J., Hodes, Gary, Cahen, David
Publikováno v:
JPCL C 120.30 , 2016, 16399-16411
Hysteresis in the current-voltage characteristics of hybrid organic-inorganic perovskite-based solar cells is one of the fundamental aspects of these cells that we do not understand well. One possible cause, suggested for the hysteresis, is polarizat
Externí odkaz:
http://arxiv.org/abs/1604.03907