Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Jung, Young‐Kwang"'
Publikováno v:
PRX Energy 2, 043004 (2023)
Thermoelectric devices can directly convert waste heat into electricity, which makes them an important clean energy technology. The underlying materials performance can be evaluated by the dimensionless figure of merit ZT. Metal halides are attractiv
Externí odkaz:
http://arxiv.org/abs/2305.11745
The competition between corner, edge and face-sharing octahedral networks is a cause of phase inhomogeneity in metal halide perovskite thin-films. Here we probe the charged iodine vacancy distribution and transport at the junction between cubic and h
Externí odkaz:
http://arxiv.org/abs/2211.00956
Publikováno v:
In Journal of Energy Chemistry October 2024 97:120-127
Bismuth-doping Alters Structural Phase Transitions in Methylammonium Lead Tribromide Single Crystals
Autor:
Jedlicka, Erin, Wang, Jian, Mutch, Joshua, Jung, Young-Kwang, Went, Preston, Mohammed, Joseph, Ziffer, Mark, Giridharagopal, Rajiv, Walsh, Aron, Chu, Jiun-Haw, Ginger, David S.
Publikováno v:
J. Phys. Chem. Lett. 2021, 12, 2749 - 2755
We study the effects of bismuth doping on the crystal structure and phase transitions in single crystals of the perovskite semiconductor methylammonium lead tribromide, MAPbBr3. By measuring temperature-dependent specific heat capacity (Cp) we find t
Externí odkaz:
http://arxiv.org/abs/2102.08500
Autor:
Muscarella, Loreta A., Hutter, Eline M., Wittmann, Francesca, Woo, Young Won, Jung, Young-Kwang, McGovern, Lucie, Versluis, Jan, Walsh, Aron, Bakker, Huib J., Ehrler, Bruno
The bandgap tunability of mixed-halide perovskites makes them promising candidates for light emitting diodes and tandem solar cells. However, illuminating mixed-halide perovskites results in the formation of segregated phases enriched in a single-hal
Externí odkaz:
http://arxiv.org/abs/2007.04648
Autor:
Hutter, Eline M., Muscarella, Loreta A., Wittmann, Francesca, Versluis, Jan, McGovern, Lucie, Bakker, Huib J., Woo, Young-Won, Jung, Young-Kwang, Walsh, Aron, Ehrler, Bruno
Publikováno v:
Cell Reports Physical Science 1, 100120, 2020
Mixing iodide and bromide in halide perovskite semiconductors is an effective strategy to tune their bandgap, therefore mixed-halide perovskites hold great promise for color-tunable LEDs and tandem solar cells. However, the bandgap of mixed-halide pe
Externí odkaz:
http://arxiv.org/abs/2001.05330
Akademický článek
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Publikováno v:
J Phys Energy 1, 016001 (2019)
Interfaces between dissimilar materials control the transport of energy in a range of technologies including solar cells (electron transport), batteries (ion transport), and thermoelectrics (heat transport). Advances in computer power and algorithms
Externí odkaz:
http://arxiv.org/abs/1808.00359
Autor:
Jones, Timothy W., Osherov, Anna, Alsari, Mejd, Sponseller, Melany, Duck, Benjamin C., Jung, Young-Kwang, Settens, Charles, Niroui, Farnaz, Brenes, Roberto, Stan, Camelia V., Li, Yao, Abdi-Jalebi, Mojtaba, Tamura, Nobumichi, Macdonald, J. Emyr, Burghammer, Manfred, Friend, Richard H., Bulović, Vladimir, Walsh, Aron, Wilson, Gregory J., Lilliu, Samuele, Stranks, Samuel D.
Halide perovskites are promising semiconductors for inexpensive, high-performance optoelectronics. Despite a remarkable defect tolerance compared to conventional semiconductors, perovskite thin films still show substantial microscale heterogeneity in
Externí odkaz:
http://arxiv.org/abs/1803.01192
Publikováno v:
Journal of Chemical Physics 146, 220901 (2017)
Organic-inorganic halide perovskites present a number of challenges for first-principles atomistic materials modelling. These `plastic crystals' feature dynamic processes across multiple length-scales and time-scales, which include: (i) transport of
Externí odkaz:
http://arxiv.org/abs/1703.09504