ORCID Profile
0000-0001-7973-6907
Current Organisations
Fraunhofer Institute for Solar Energy Systems
,
University of Oxford
,
University of Freiburg
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Publisher: American Association for the Advancement of Science (AAAS)
Date: 30-10-2020
Abstract: The optoelectronic and photovoltaic applications of polycrystalline hybrid metal halide perovskite films are notable because grain boundaries in most materials cause scattering of charge carriers that decreases performance. Electron microscopy studies of these materials have been hindered by their rapid structural degradation under intense electron beams. Rothmann et al. now present an atomic crystallographic structure of formamidinium lead triiodide (FAPbI 3 ) polycrystalline thin films obtained by low-electron-dose scanning transmission electron microscopy with advanced image processing. The crystal structure sustains substoichiometry in the A-site cation, has a nearly perfect crystallographic alignment between PbI 2 impurity phases and the FAPbI 3 perovskite, and has atomically clean grain boundaries between polycrystalline domains. These features help to explain the films' surprising regenerative ability, their benign grain boundaries where strain and dislocations appear mostly absent, and why excess lead-iodide precursor can be counterintuitively beneficial. Science , this issue p. eabb5940
Publisher: American Chemical Society (ACS)
Date: 14-11-2017
Publisher: Royal Society of Chemistry (RSC)
Date: 2023
DOI: 10.1039/D2NR06509F
Abstract: Lead dioxide precursor as an efficient source of highly complexed iodoplumbates for the synthesis of 2D lead halide perovskite microplates.
Publisher: American Chemical Society (ACS)
Date: 17-07-2019
Publisher: American Chemical Society (ACS)
Date: 02-2021
Publisher: Springer Science and Business Media LLC
Date: 24-08-2020
Publisher: American Chemical Society (ACS)
Date: 23-07-2018
DOI: 10.1021/ACS.JPCLETT.8B01628
Abstract: Metal halide perovskites have proven to be excellent light-harvesting materials in photovoltaic devices whose efficiencies are rapidly improving. Here, we examine the temperature-dependent photon absorption, exciton binding energy, and band gap of FAPbI
Publisher: American Chemical Society (ACS)
Date: 06-04-2021
Publisher: American Chemical Society (ACS)
Date: 24-05-2022
Publisher: American Chemical Society (ACS)
Date: 10-10-2019
Publisher: American Chemical Society (ACS)
Date: 17-04-2020
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Anna Juliane Borchert.