Zobrazeno 1 - 10
of 241
pro vyhledávání: '"Oleksandr Voznyy"'
Autor:
Hitarth Choubisa, Petar Todorović, Joao M. Pina, Darshan H. Parmar, Ziliang Li, Oleksandr Voznyy, Isaac Tamblyn, Edward H. Sargent
Publikováno v:
npj Computational Materials, Vol 9, Iss 1, Pp 1-11 (2023)
Abstract Machine learning models of material properties accelerate materials discovery, reproducing density functional theory calculated results at a fraction of the cost1–6. To bridge the gap between theory and experiments, machine learning predic
Externí odkaz:
https://doaj.org/article/dfd195b1242846a5a848ba470f4e5f86
Publikováno v:
APL Energy, Vol 1, Iss 2, Pp 026101-026101-8 (2023)
Despite the extensive research in Li-rich layered oxides (LLOs), which are promising candidates for high-energy density cathodes, their cycle life still cannot meet the real-world application requirements. The poor cycle performance arises from the e
Externí odkaz:
https://doaj.org/article/f33ac4a658a04edd8c58f2aaa0449201
Autor:
Erik Ekström, Simon Hurand, Arnaud le Febvrier, Anna Elsukova, Per O.Å. Persson, Biplab Paul, Fredrik Eriksson, Geetu Sharma, Oleksandr Voznyy, Davide G. Sangiovanni, Ganpati Ramanath, Per Eklund
Publikováno v:
Materials & Design, Vol 229, Iss , Pp 111864- (2023)
Realizing stress-free inorganic epitaxial films on weakly bonding substrates is of importance for applications that require film transfer onto surfaces that do not seed epitaxy. Film-substrate bonding is usually weakened by harnessing natural van der
Externí odkaz:
https://doaj.org/article/0aad205c94834885a0c12dd0d28461c9
Autor:
Shahram Moradi, Soumya Kundu, Milad Rezazadeh, Vishal Yeddu, Oleksandr Voznyy, Makhsud I. Saidaminov
Publikováno v:
Communications Materials, Vol 3, Iss 1, Pp 1-5 (2022)
High-throughput materials discovery can reduce the time taken to identify high-performing materials. Here, compositionally-graded films are fabricated in a binary halide perovskite system, of interest for solar cells, and their stability investigated
Externí odkaz:
https://doaj.org/article/9d2febe845c346c1af943b387ac6ffe5
Autor:
Kamalpreet Singh, Oleksandr Voznyy
Publikováno v:
Results in Materials, Vol 15, Iss , Pp 100303- (2022)
Economical catalysts for oxygen evolution reaction (OER) under acidic conditions to replace the expensive IrO2 gold standard are highly desirable. In this work, we demonstrate the use of an inexpensive FeAlCr alloy for acidic OER. 670 times cheaper t
Externí odkaz:
https://doaj.org/article/422a03a234c9443f9df081768e7621b8
Autor:
Seungjin Lee, Min-Jae Choi, Geetu Sharma, Margherita Biondi, Bin Chen, Se-Woong Baek, Amin Morteza Najarian, Maral Vafaie, Joshua Wicks, Laxmi Kishore Sagar, Sjoerd Hoogland, F. Pelayo García de Arquer, Oleksandr Voznyy, Edward H. Sargent
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
The realisation of film made up of different compositions using colloidal QD inks remains a challenge because of redispersing of underlying films by polar solvents. Here, the authors introduce aromatic ligands to achieve QD inks in weakly-polar solve
Externí odkaz:
https://doaj.org/article/aeb835dea0a142fa97365e19772fa900
Autor:
Ya-Kun Wang, Dongxin Ma, Fanglong Yuan, Kamalpreet Singh, Joao M. Pina, Andrew Johnston, Yitong Dong, Chun Zhou, Bin Chen, Bin Sun, Hinako Ebe, James Fan, Meng-Jia Sun, Yuan Gao, Zheng-Hong Lu, Oleksandr Voznyy, Liang-Sheng Liao, Edward H. Sargent
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)
Metal halide perovskites have been studied as promising materials for blue light-emitting diodes (LEDs) but the stability is still a bottleneck. Here Wang et al. develop a chelating additive strategy to increase efficiency, operational stability and
Externí odkaz:
https://doaj.org/article/04f484dfc85e4231a3f515fbbc9f6b90
Autor:
Li Na Quan, Dongxin Ma, Yongbiao Zhao, Oleksandr Voznyy, Haifeng Yuan, Eva Bladt, Jun Pan, F. Pelayo García de Arquer, Randy Sabatini, Zachary Piontkowski, Abdul-Hamid Emwas, Petar Todorović, Rafael Quintero-Bermudez, Grant Walters, James Z. Fan, Mengxia Liu, Hairen Tan, Makhsud I. Saidaminov, Liang Gao, Yiying Li, Dalaver H. Anjum, Nini Wei, Jiang Tang, David W. McCamant, Maarten B. J. Roeffaers, Sara Bals, Johan Hofkens, Osman M. Bakr, Zheng-Hong Lu, Edward H. Sargent
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
Reduced-dimensional halide perovskites are promising for light-emitting diodes but suffer from photo-degradation. Here Quan et al. identify the edge of the perovskite nanoplatelets as the degradation channels and use phosphine oxides to passivate the
Externí odkaz:
https://doaj.org/article/7244fd019e6f4504a9d746d2270fa65f
Autor:
Min-Jae Choi, F. Pelayo García de Arquer, Andrew H. Proppe, Ali Seifitokaldani, Jongmin Choi, Junghwan Kim, Se-Woong Baek, Mengxia Liu, Bin Sun, Margherita Biondi, Benjamin Scheffel, Grant Walters, Dae-Hyun Nam, Jea Woong Jo, Olivier Ouellette, Oleksandr Voznyy, Sjoerd Hoogland, Shana O. Kelley, Yeon Sik Jung, Edward. H. Sargent
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
It is challenging to realize doping and surface passivation simultaneously in colloidal quantum dot inks. Here Choi et al. employ a cascade surface modification approach to solve the problem and obtain record high efficiency of 13.3% for bulk homojun
Externí odkaz:
https://doaj.org/article/2ed0f59cdfce4eaaa79a88427ebd3424
Autor:
Xiwen Gong, Ziru Huang, Randy Sabatini, Chih-Shan Tan, Golam Bappi, Grant Walters, Andrew Proppe, Makhsud I. Saidaminov, Oleksandr Voznyy, Shana O. Kelley, Edward H. Sargent
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-7 (2019)
Reliable and consistent measurement of the carrier diffusion length in metal halide perovskite single crystals has proven difficult. Here Gong, Huang et al. systematically included very dilute quantum dot quenchers into perovskite crystals and develo
Externí odkaz:
https://doaj.org/article/e1a2ba273bf44c80b60da797ba939f4c