Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Michael, Kulbak"'
Publikováno v:
Frontiers in Energy Research, Vol 8 (2020)
We show a simple modification of spin-coating to obtain pinhole-free, well-covering and uniform films of an all-inorganic Pb-halide perovskite (Pb-HaP), on a flat substrate (i.e., not mesoporous) at standard temperature and pressure. In Pb-HaP-based
Externí odkaz:
https://doaj.org/article/ed8ee07805734743bca5a0d4057180c0
Autor:
Byung-wook Park, Nir Kedem, Michael Kulbak, Do Yoon Lee, Woon Seok Yang, Nam Joong Jeon, Jangwon Seo, Geonhwa Kim, Ki Jeong Kim, Tae Joo Shin, Gary Hodes, David Cahen, Sang Il Seok
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-8 (2018)
Excess lead iodide in the mixed halide perovskites solar cells leads to high device performance but its origin remains elusive. Here Park et al. unveil the underlying microscopic mechanism to be promoting the oriented growth of the perovskites crysta
Externí odkaz:
https://doaj.org/article/1a8a8272773345c7a6dde63e0ec559c0
Autor:
David Cahen, Alberto Lomuscio, Arava Zohar, Hisao Ishii, Richard H. Friend, Mojtaba Abdi-Jalebi, Kohei Shimizu, Igal Levine, Gary Hodes, Carolin Rehermann, Antoine Kahn, Fengshuo Zu, Baodan Zhao, Susanne Siebentritt, Michael Kulbak, Norbert Koch
Publikováno v:
The Journal of Physical Chemistry C. 125:5217-5225
Direct detection of intrinsic defects in halide perovskites HaPs by standard methods utilizing optical excitation is quite challenging, due to the low density of defects in most samples of this family of materials lt; 10 15 cm 3 in polycrystalline th
Autor:
Gary Hodes, Arava Zohar, Anders Hagfeldt, Michael Kulbak, Silver H. Turren-Cruz, Adi Kama, David Cahen, Pabitra K. Nayak, Henry J. Snaith
Publikováno v:
ACS applied materialsinterfaces. 14(30)
The origin of the low densities of electrically active defects in Pb halide perovskite (HaP), a crucial factor for their use in photovoltaics, light emission, and radiation detection, remains a matter of discussion, in part because of the difficulty
Autor:
Igal Levine, Sergiu Levcenko, Gary Hodes, Thomas Dittrich, David Cahen, Thomas Unold, Isaac Balberg, Davide-Raffaele Ceratti, Carolin Rehermann, José A. Márquez, Omar Garcia Vera, Michael Kulbak
Publikováno v:
ACS Energy Letters. 4:1150-1157
Lead bromide-based halide perovskites are of interest for wide-band-gap (>1.75 eV) absorbers for low-cost solar spectrum splitting to boost solar-to-electrical energy conversion efficiency/area by ...
Publikováno v:
Frontiers in Energy Research, Vol 8 (2020)
We show a simple modification of spin-coating to obtain pinhole-free, well-covering and uniform films of an all-inorganic Pb-halide perovskite (Pb-HaP), on a flat substrate (i.e., not mesoporous) at standard temperature and pressure. In Pb-HaP-based
Autor:
Harishchandra Singh, Ruixiang Fei, David Cahen, Michael Kulbak, Andrew M. Rappe, Anatoly I. Frenkel, Yevgeny Rakita
Publikováno v:
Physical Review B. 101
Extended x-ray absorption fine structure spectroscopy of the light-harvesting formamidinium lead bromide $({\mathrm{FAPbBr}}_{3})$ perovskite, a system with attractive optoelectronic performance, shows anomalously large variance in Pb-Br bond length,
Publikováno v:
ACS Energy Letters. 4:1-7
High band gap Pb bromide perovskite (APbBr3)-based solar cells, where A is a mixture of formamidinium, methylammonium, and Cs, show significantly higher, relative, VOC losses than their iodide analogs. Using photoluminescence-, quantum efficiency-, a
Autor:
Shankar Harisingh, Igal Levine, Bat-El Cohen, Micha Asscher, David Cahen, Sujith Ramakrishnan, Michael Kulbak, Lioz Etgar
Publikováno v:
Physical Chemistry Chemical Physics. 20:16847-16852
Inorganic and organic lead halide perovskite materials attract great interest in the scientific community because of their potential for low-cost, high efficiency solar cells. In this report we add a new property of these materials, namely their phot
Publikováno v:
Phys. Chem. Chem. Phys.. 19:5753-5762
Using several metals with different work functions as solar cell back contact we identify majority carrier type inversion in methylammonium lead bromide (MAPbBr3, without intentional doping) as the basis for the formation of a p–n junction. MAPbBr3