Zobrazeno 1 - 10
of 384
pro vyhledávání: '"Polavarapu , Lakshminarayana"'
Autor:
Fasahat, Shima, Schäfer, Benedikt, Xu, Kai, Fiuza-Maneiro, Nadesh, Gómez-Graña, Sergio, Alonso, M. Isabel, Polavarapu, Lakshminarayana, Goñi, Alejandro R.
Metal halide perovskites exhibit a fairly linear increase of the bandgap with increasing temperature, when crystallized in a tetragonal or cubic phase. In general, both thermal expansion and electron-phonon interaction effects contribute equally to t
Externí odkaz:
http://arxiv.org/abs/2409.06374
Autor:
Martinez, Clara Otero, Zaffalon, Matteo L., Ivanov, Yurii, Livakas, Nikolaos, Goldoni, Luca, Divitini, Giorgio, Bora, Sankalpa, Saleh, Gabriele, Meinardi, Francesco, Fratelli, Andrea, Chakraborty, Sudip, Polavarapu, Lakshminarayana, Brovelli, Sergio, Manna, Liberato
Publikováno v:
ACS Energy Letters 2024
We report a colloidal synthesis of blue emissive, stable cube-shaped CsPbBr3 quantum dots (QDs) in the strong quantum confinement regime via a dissolution-recrystallization starting from pre-synthesized (KxCs1-x)4PbBr6 nanocrystals which are then rea
Externí odkaz:
http://arxiv.org/abs/2406.12696
Autor:
Ye, Junzhi, Mondal, Navendu, Carwithen, Ben P., Zhang, Yunwei, Dai, Linjie, Fan, Xiangbin, Mao, Jian, Cui, Zhiqiang, Ghosh, Pratyush, Martinez, Clara Otero, van Turnhout, Lars, Yu, Zhongzheng, Chen, Ziming, Greenham, Neil C., Stranks, Samuel D., Polavarapu, Lakshminarayana, Bakulin, Artem, Rao, Akshay, Hoye, Robert L. Z.
Defect tolerance is a critical enabling factor for efficient lead-halide perovskite materials, but the current understanding is primarily on band-edge (cold) carriers, with significant debate over whether hot carriers (HCs) can also exhibit defect to
Externí odkaz:
http://arxiv.org/abs/2404.06276
Autor:
Chen, Ziming, Hoye, Robert L. Z., Yip, Hin-Lap, Fiuza-Maneiro, Nadesh, López-Fernández, Iago, Otero-Martínez, Clara, Polavarapu, Lakshminarayana, Mondal, Navendu, Mirabelli, Alessandro, Anaya, Miguel, Stranks, Samuel D., Liu, Hui, Shi, Guangyi, Xiao, Zhengguo, Kim, Nakyung, Kim, Yunna, Shin, Byungha, Shi, Jinquan, Liu, Mengxia, Zhang, Qianpeng, Fan, Zhiyong, Loy, James C., Zhao, Lianfeng, Rand, Barry P., Arfin, Habibul, Saikia, Sajid, Nag, Angshuman, Zou, Chen, Lin, Lih Y., Xiang, Hengyang, Zeng, Haibo, Liu, Denghui, Su, Shi-Jian, Wang, Chenhui, Zhong, Haizheng, Xuan, Tong-Tong, Xie, Rong-Jun, Bao, Chunxiong, Gao, Feng, Gao, Xiang, Qin, Chuanjiang, Kim, Young-Hoon, Beard, Matthew C.
In recent years, the field of metal-halide perovskite emitters has rapidly emerged as a new community in solid-state lighting. Their exceptional optoelectronic properties have contributed to the rapid rise in external quantum efficiencies (EQEs) in p
Externí odkaz:
http://arxiv.org/abs/2311.11232
Autor:
Ye, Junzhi, Ren, Aobo, Dai, Linjie, Baikie, Tomi, Guo, Renjun, Pal, Debapriya, Gorgon, Sebastian, Heger, Julian E., Huang, Junyang, Sun, Yuqi, Arul, Rakesh, Grimaldi, Gianluca, Zhang, Kaiwen, Shamsi, Javad, Huang, Yi-Teng, Wang, Hao, Wu, Jiang, Koenderink, A. Femius, Murciano, Laura Torrente, Schwartzkopf, Matthias, Roth, Stephen V., Muller-Buschbaum, Peter, Baumberg, Jeremy J., Stranks, Samuel D., Greenham, Neil C., Polavarapu, Lakshminarayana, Zhang, Wei, Rao, Akshay, Hoye, Robert L. Z.
Polarised light is critical for a wide range of applications, but is usually generated by filtering unpolarised light, which leads to significant energy losses and requires additional optics. Herein, the direct emission of linearly-polarised light is
Externí odkaz:
http://arxiv.org/abs/2302.03582
Autor:
Gramlich, Moritz, Bohn, Bernhard J., Tong, Yu, Polavarapu, Lakshminarayana, Feldmann, Jochen, Urban, Alexander S.
Exciton-exciton annihilation (EEA) and Auger recombination are detrimental processes occurring in semiconductor optoelectronic devices at high carrier densities. Despite constituting one of the main obstacles for realizing lasing in semiconductor nan
Externí odkaz:
http://arxiv.org/abs/2010.14954
Autor:
Hoye, Robert L. Z., Lai, May-Ling, Anaya, Miguel, Tong, Yu, Gałkowski, Krzysztof, Doherty, Tiarnan, Li, Weiwei, Huq, Tahmida N., Mackowski, Sebastian, Polavarapu, Lakshminarayana, Feldmann, Jochen, MacManus-Driscoll, Judith L., Friend, Richard H., Urban, Alexander S., Stranks, Samuel D.
Publikováno v:
ACS Energy Lett. 2019, 4, 5, 1181
Perovskite nanoplatelets (NPls) hold great promise for light-emitting applications, having achieved high photoluminescence quantum efficiencies (PLQEs) approaching unity in the blue wavelength range, where other metal-halide perovskites have typicall
Externí odkaz:
http://arxiv.org/abs/2010.14926
Publikováno v:
ACS Nano 2018, 12, 10, 10151
For high-speed optoelectronic applications relying on fast relaxation or energy transfer mechanisms, understanding of carrier relaxation and recombination dynamics is critical. Here, we compare the differences in photoexcited carrier dynamics in 2D a
Externí odkaz:
http://arxiv.org/abs/2010.14398
Autor:
Bohn, Bernhard J., Tong, Yu, Gramlich, Moritz, Lai, May Ling, Döblinger, Markus, Wang, Kun, Hoye, Robert L. Z., Müller-Buschbaum, Peter, Stranks, Samuel D., Urban, Alexander S., Polavarapu, Lakshminarayana, Feldmann, Jochen
Publikováno v:
Nano Letters 2018, 18, 8, 5231
The easily tunable emission of halide perovskite nanocrystals throughout the visible spectrum makes them an extremely promising material for light-emitting applications. Whereas high quantum yields and long-term colloidal stability have already been
Externí odkaz:
http://arxiv.org/abs/2010.14392
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