Simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion

Hui Cao; Shurong Wang; Mingdao Zhang; Tao Tao; Jinwei Sun; Jing Ma

doi:10.1063/1.5095799

AIP Advances (May 2019)

Simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion

Hui Cao,
Shurong Wang,
Mingdao Zhang,
Tao Tao,
Jinwei Sun,
Jing Ma

Affiliations

Hui Cao: Jiang Su Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Center of Atmospheric Environment and Equipment Technology, School of Chemistry and Materials Science, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
Shurong Wang: Jiang Su Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Center of Atmospheric Environment and Equipment Technology, School of Chemistry and Materials Science, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
Mingdao Zhang: Jiang Su Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Center of Atmospheric Environment and Equipment Technology, School of Chemistry and Materials Science, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
Tao Tao: Jiang Su Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Center of Atmospheric Environment and Equipment Technology, School of Chemistry and Materials Science, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
Jinwei Sun: Jiang Su Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Center of Atmospheric Environment and Equipment Technology, School of Chemistry and Materials Science, Nanjing University of Information Science and Technology, Nanjing 210044, P. R. China
Jing Ma: School of Chemistry and Chemical Engineering, Institute of Theoretical and Computational Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, Nanjing University, Nanjing 210093, P. R. China

DOI: https://doi.org/10.1063/1.5095799
Journal volume & issue: Vol. 9, no. 5
pp. 055322 – 055322-7

Abstract

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Understanding the mechanism of photovoltaic conversion in perovskite solar cells (PSCs) remains a great challenge. In this work, we have simulated the charge generation, transport and recombination in PSCs under standard AM 1.5G sunlight on the basis of solving hierarchical equations of motion with model Hamiltonian. Reasonable current/voltage characteristics, power conversion efficiency (PCE), and incident photon to current conversion efficiency (IPCE) can be obtained by investigating different interaction with respect to the interfacial recombination. Moreover, it is found that the interfacial charge transfer (CT) states can greatly affect the current/voltage characteristics, which is elucidated by analyzing the density of states. Dynamics response of current to sunlight or bias is demonstrated and the intrinsic temperature effect on PCE is also discussed.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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