A comprehensive defect study of tungsten disulfide (WS2) as electron transport layer in perovskite solar cells by numerical simulation

K. Sobayel; Md. Akhtaruzzaman; K.S. Rahman; M.T. Ferdaous; Zeyad A. Al-Mutairi; Hamad F. Alharbi; Nabeel H. Alharthi; Mohammad R. Karim; S. Hasmady; N. Amin

Results in Physics (Mar 2019)

A comprehensive defect study of tungsten disulfide (WS2) as electron transport layer in perovskite solar cells by numerical simulation

K. Sobayel,
Md. Akhtaruzzaman,
K.S. Rahman,
M.T. Ferdaous,
Zeyad A. Al-Mutairi,
Hamad F. Alharbi,
Nabeel H. Alharthi,
Mohammad R. Karim,
S. Hasmady,
N. Amin

Affiliations

K. Sobayel: Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, The National University of Malaysia, 43600 Bangi, Selangor, Malaysia
Md. Akhtaruzzaman: Solar Energy Research Institute, The National University of Malaysia, 43600 Bangi, Malaysia; Corresponding authors at: Solar Energy Research Institute, Universiti Kebangsaan Malaysia (@The National University of Malaysia), Selangor, Malaysia (Md. Akhtaruzzaman). Institute of Sustainable Energy, Universiti Tenaga Nasional (@The National Energy University), Jalan IKRAM-UNITEN, 43000 Kajang, Selangor, Malaysia (N. Amin).
K.S. Rahman: Solar Energy Research Institute, The National University of Malaysia, 43600 Bangi, Malaysia
M.T. Ferdaous: Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, The National University of Malaysia, 43600 Bangi, Selangor, Malaysia
Zeyad A. Al-Mutairi: Mechanical Engineering Department, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
Hamad F. Alharbi: Mechanical Engineering Department, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
Nabeel H. Alharthi: Center of Excellence for Research in Engineering Materials, King Saud University, Riyadh 11421, Saudi Arabia
Mohammad R. Karim: Center of Excellence for Research in Engineering Materials, King Saud University, Riyadh 11421, Saudi Arabia
S. Hasmady: Institute of Sustainable Energy, Universiti Tenaga Nasional (@The National Energy University), Jalan IKRAM-UNITEN, 43000 Kajang, Selangor, Malaysia
N. Amin: Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, The National University of Malaysia, 43600 Bangi, Selangor, Malaysia; Institute of Sustainable Energy, Universiti Tenaga Nasional (@The National Energy University), Jalan IKRAM-UNITEN, 43000 Kajang, Selangor, Malaysia; Corresponding authors at: Solar Energy Research Institute, Universiti Kebangsaan Malaysia (@The National University of Malaysia), Selangor, Malaysia (Md. Akhtaruzzaman). Institute of Sustainable Energy, Universiti Tenaga Nasional (@The National Energy University), Jalan IKRAM-UNITEN, 43000 Kajang, Selangor, Malaysia (N. Amin).

Journal volume & issue: Vol. 12
pp. 1097 – 1103

Abstract

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In this study, an ideal planar perovskite solar cell (PSC) has been proposed and simulated by using Tungsten Disulfide (WS2) as an electron transport layer (ETL). Effects of various amphoteric defect states of PSC based on CH3NH3PbI3−xXx absorber layer and the interface properties of both ETL and hole transport layer (HTL) are quantitatively analysed by SCAPS-1D numerical simulator. Results show that the device performance is highly influenced by amphoteric defects in the absorber layer rather than the interface defects layer (IDL). It is also revealed that the quantitative tolerable range in CH3NH3PbI3−xXx and IDLs are less than 1015 cm−3 and 1016 cm−3, respectively. The PSC exhibits better performance in the range of 10 °C–40 °C and degrades gradually at higher temperature. With the proposed structure, the simulation finds the highest power conversion efficiency (PCE) of PSC to be 25.70% (Voc = 1.056 V, Jsc = 25.483 mA/cm2, and FF = 88.54%). Keywords: Perovskite solar cells, WS2 thin films, Hole transport layers, Electron transport layer, Amphoteric defects, Interface properties, Numerical simulation, SCAPS-1D

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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