Extending the defect tolerance of halide perovskite nanocrystals to hot carrier cooling dynamics

Autor: Junzhi Ye, Navendu Mondal, Ben P. Carwithen, Yunwei Zhang, Linjie Dai, Xiang-Bing Fan, Jian Mao, Zhiqiang Cui, Pratyush Ghosh, Clara Otero‐Martínez, Lars van Turnhout, Yi-Teng Huang, Zhongzheng Yu, Ziming Chen, Neil C. Greenham, Samuel D. Stranks, Lakshminarayana Polavarapu, Artem Bakulin, Akshay Rao, Robert L. Z. Hoye

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)

Abstract 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 can also exhibit defect

Externí odkaz: https://doaj.org/article/bb20e889120b49c3bf8439835d86eb61

Confinement and Exciton Binding Energy Effects on Hot Carrier Cooling in Lead Halide Perovskite Nanomaterials

Autor: Ben P. Carwithen, Thomas R. Hopper, Ziyuan Ge, Navendu Mondal, Tong Wang, Rozana Mazlumian, Xijia Zheng, Franziska Krieg, Federico Montanarella, Georgian Nedelcu, Martin Kroll, Miguel Albaladejo Siguan, Jarvist M. Frost, Karl Leo, Yana Vaynzof, Maryna I. Bodnarchuk, Maksym V. Kovalenko, Artem A. Bakulin

Publikováno v: ACS Nano, 17 (7)

The relaxation of the above-gap ("hot") carriers in lead halide perovskites (LHPs) is important for applications in photovoltaics and offers insights into carrier-carrier and carrier-phonon interactions. However, the role of quantum confinement in th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3a13404abf75b9e04bfcd5fe980d9cd

Nonadiabatic coupling effects in the 800 nm strong field ionization induced Coulomb explosion of methyl iodide revealed by multi-mass velocity map imaging and ab initio simulation studies

Autor: Stuart W. Crane, Christopher S. Hansen, Lingfeng Ge, Ben P Carwithen, James A Smith, Graham A. Cooper, Michael N. R. Ashfold, Matthew Bain

Publikováno v: Crane, S W, Ge, L, Cooper, G A, Carwithen, B P, Bain, M, Smith, J A, Hansen, C S & Ashfold, M N R 2021, ' Nonadiabatic coupling effects in the 800 nm strong field ionization induced Coulomb explosion of methyl iodide revealed by multi-mass velocity map imaging and ab initio simulation studies ', Journal of Physical Chemistry A, vol. 125, pp. 9594-9608 . https://doi.org/10.1021/acs.jpca.1c06346

The Coulomb explosion (CE) of jet-cooled CH3I molecules using ultrashort (40 fs), nonresonant 805 nm strong-field ionization at three peak intensities (260, 650, and 1300 TW cm-2) has been investigated by multimass velocity map imaging, revealing an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fe6da9ac67a94e250d06eb3d85e6861
https://research-information.bris.ac.uk/ws/files/298191047/MeI_CEI_revised_17_Sept_submitted.pdf