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

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...

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Main Authors:	Hui Cao, Shurong Wang, Mingdao Zhang, Tao Tao, Jinwei Sun, Jing Ma
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2019-05-01
Series:	AIP Advances
Online Access:	http://dx.doi.org/10.1063/1.5095799

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record_format	Article
spelling	doaj-60cfaffabd65441fa8189ed5e87768132020-11-24T21:33:05ZengAIP Publishing LLCAIP Advances2158-32262019-05-0195055322055322-710.1063/1.5095799078905ADVSimulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motionHui Cao0Shurong Wang1Mingdao Zhang2Tao Tao3Jinwei Sun4Jing Ma5Jiang 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. ChinaJiang 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. ChinaJiang 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. ChinaJiang 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. ChinaJiang 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. ChinaSchool of Chemistry and Chemical Engineering, Institute of Theoretical and Computational Chemistry, Key Laboratory of Mesoscopic Chemistry of MOE, Nanjing University, Nanjing 210093, P. R. ChinaUnderstanding 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.http://dx.doi.org/10.1063/1.5095799
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Hui Cao Shurong Wang Mingdao Zhang Tao Tao Jinwei Sun Jing Ma
spellingShingle	Hui Cao Shurong Wang Mingdao Zhang Tao Tao Jinwei Sun Jing Ma Simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion AIP Advances
author_facet	Hui Cao Shurong Wang Mingdao Zhang Tao Tao Jinwei Sun Jing Ma
author_sort	Hui Cao
title	Simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion
title_short	Simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion
title_full	Simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion
title_fullStr	Simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion
title_full_unstemmed	Simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion
title_sort	simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion
publisher	AIP Publishing LLC
series	AIP Advances
issn	2158-3226
publishDate	2019-05-01
description	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.
url	http://dx.doi.org/10.1063/1.5095799
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Simulations on photovoltaic conversion in perovskite solar cells by solving hierarchical equations of motion

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