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Anwar Q. Alanazi
Researcher at École Polytechnique Fédérale de Lausanne
Publications - 23
Citations - 569
Anwar Q. Alanazi is an academic researcher from École Polytechnique Fédérale de Lausanne. The author has contributed to research in topics: Perovskite (structure) & Chemistry. The author has an hindex of 7, co-authored 13 publications receiving 325 citations. Previous affiliations of Anwar Q. Alanazi include King Saud University & King Abdulaziz City for Science and Technology.
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Journal ArticleDOI
Atomic-level passivation mechanism of ammonium salts enabling highly efficient perovskite solar cells.
Essa A. Alharbi,Ahmed Y. Alyamani,Dominik J. Kubicki,Alexander R. Uhl,Alexander R. Uhl,Brennan J. Walder,Anwar Q. Alanazi,Jingshan Luo,Jingshan Luo,Andrés Burgos-Caminal,Abdulrahman M. Albadri,Hamad Albrithen,Hamad Albrithen,Mohammad Hayal Alotaibi,Jacques-E. Moser,Shaik M. Zakeeruddin,Fabrizio Giordano,Lyndon Emsley,Michael Grätzel +18 more
TL;DR: Alharbi et al. show that ammonium salts treatment can reduce the defect density at the perovskite surface and understand the passivation mechanism with 2D-solid state NMR.
Journal ArticleDOI
Engineering of Perovskite Materials Based on Formamidinium and Cesium Hybridization for High-Efficiency Solar Cells
Daniel Prochowicz,Rashmi Runjhun,Mohammad Mahdi Tavakoli,Pankaj Yadav,Marcin Saski,Anwar Q. Alanazi,Dominik J. Kubicki,Zbigniew Kaszkur,Shaik M. Zakeeruddin,Janusz Lewiński,Janusz Lewiński,Michael Grätzel +11 more
TL;DR: In this paper, the chemical composition of inorganic-organic hybrid perovskite materials is used to boost the performance and operational stability of perovsite solar cells (PSCs).
Journal ArticleDOI
Atomic-Level Microstructure of Efficient Formamidinium-Based Perovskite Solar Cells Stabilized by 5-Ammonium Valeric Acid Iodide Revealed by Multinuclear and Two-Dimensional Solid-State NMR.
Anwar Q. Alanazi,Dominik J. Kubicki,Daniel Prochowicz,Daniel Prochowicz,Essa A. Alharbi,Marine E. F. Bouduban,Farzaneh Jahanbakhshi,Marko Mladenović,Marko Mladenović,Jovana V. Milić,Fabrizio Giordano,Dan Ren,Ahmed Y. Alyamani,Hamad Albrithen,Hamad Albrithen,Abdulrahman M. Albadri,Mohammad Hayal Alotaibi,Jacques-E. Moser,Shaik M. Zakeeruddin,Ursula Rothlisberger,Lyndon Emsley,Michael Grätzel +21 more
TL;DR: It is found that one-step deposition of the perovskite in the presence of AVAI produces highly crystalline films with large, micrometer-sized grains and enhanced charge-carrier lifetimes, as probed by transient absorption spectroscopy.
Journal ArticleDOI
Ruddlesden–Popper Phases of Methylammonium-Based Two-Dimensional Perovskites with 5-Ammonium Valeric Acid AVA2MAn–1PbnI3n+1 with n = 1, 2, and 3
Negar Ashari-Astani,Negar Ashari-Astani,Farzaneh Jahanbakhshi,Marko Mladenović,Marko Mladenović,Anwar Q. Alanazi,Iman Ahmadabadi,Mohammad Reza Ejtehadi,M. Ibrahim Dar,Michael Grätzel,Ursula Rothlisberger +10 more
TL;DR: This work provides density functional theory-based structural models for the Ruddlesden-Popper (RP) phases of AVA2(CH3NH3) n-1Pb nI3 n+1 for n = 1, 2, and 3 and validate with experimental data on polycrystalline samples.
Journal ArticleDOI
Benzylammonium‐Mediated Formamidinium Lead Iodide Perovskite Phase Stabilization for Photovoltaics
Anwar Q. Alanazi,Masaud Almalki,Aditya Mishra,Dominik J. Kubicki,Zaiwei Wang,Lena Merten,Felix Eickemeyer,Hong Zhang,Dan Ren,Ahmed Y. Alyamani,Hamad Albrithen,Hamad Albrithen,Abdulrahman M. Albadri,Mohammad Hayal Alotaibi,Alexander Hinderhofer,Shaik M. Zakeeruddin,Frank Schreiber,Anders Hagfeldt,Lyndon Emsley,Jovana V. Milić,Michael Graetzel +20 more
TL;DR: In this paper, a stable α-FAPbI3 perovskite phase is achieved by employing benzylammonium iodide (BzI) and the microscopic structure is elucidated by using solid-state NMR spectroscopy and X-ray scattering measurements.