Controllable solution-phase epitaxial growth of Q1D Sb₂(S,Se)₃/CdS heterojunction solar cell with 9.2% efficiency

Antimony sulfoselenide (Sb2 (S,Se)3 ) is a promising photoabsorber for stable and high efficiency thin film photovoltaics (PV). The unique quasi-1D (Q1D) crystal structure gives Sb2 (S,Se)3 intriguing anisotropic optoelectronic properties, which intrinsically require the optimization of crystal grow...

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Main Authors: Jin, Xin, Fang, Yanan, Salim, Teddy, Feng, Minjun, Yuan, Zhengtian, Hadke, Shreyash, Sum, Tze Chien, Wong, Lydia Helena
Other Authors: School of Materials Science and Engineering
Format: Article
Language:English
Published: 2022
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Online Access:https://hdl.handle.net/10356/160711
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-1607112022-08-01T06:52:14Z Controllable solution-phase epitaxial growth of Q1D Sb₂(S,Se)₃/CdS heterojunction solar cell with 9.2% efficiency Jin, Xin Fang, Yanan Salim, Teddy Feng, Minjun Yuan, Zhengtian Hadke, Shreyash Sum, Tze Chien Wong, Lydia Helena School of Materials Science and Engineering School of Physical and Mathematical Sciences Singapore-HUJ Alliance for Research and Enterprise Nanomaterials for Energy and Energy-Water Nexus Campus for Research Excellence and Technological Enterprise Energy Research Institute @ NTU (ERI@N) Engineering::Materials Hydrothermal Method Vertical Growth Antimony sulfoselenide (Sb2 (S,Se)3 ) is a promising photoabsorber for stable and high efficiency thin film photovoltaics (PV). The unique quasi-1D (Q1D) crystal structure gives Sb2 (S,Se)3 intriguing anisotropic optoelectronic properties, which intrinsically require the optimization of crystal growth orientation, especially for electronic devices with vertical charge transport such as solar cells. Although the efficiency of Sb2 (S,Se)3 solar cells has been improved greatly through optimizing the material quality, the fundamental issue of crystal orientation control in polycrystalline films remains unsolved, resulting in charge carrier recombination losses in the device. Herein, the epitaxial growth of vertically-oriented Sb2 (S,Se)3 film on hexagonal CdS is successfully realized via a solution-based synergistic crystal growth process. The crystallographic orientation relationship between Sb2 (S,Se)3 light absorber and the CdS substrate has been rigorously investigated. The best performing Sb2 (S,Se)3 solar cell shows a high power conversion efficiency of 9.2% owing to the faster charge transport in the bulk and the efficient charge extraction across the heterojunction. This study points to a new direction to control the crystal growth of mixed-anion Sb2 (S,Se)3 , which is crucial to achieve high efficiency solar cells based on antimony chalcogenides with low dimensionality. Ministry of Education (MOE) Nanyang Technological University National Research Foundation (NRF) X.J. and L.H.W. acknowledge the funding support from the National Research Foundation, Prime Minister's Office, Singapore under its Campus of Research Excellence and Technological Enterprise (CREATE) programme; and the Ministry of Education (MOE) Tier 2 Project (MOE2016-T2-1-030). T.C.S. and M.F. acknowledge the financial support from Nanyang Technological University start-up grant M4080514. 2022-08-01T06:52:14Z 2022-08-01T06:52:14Z 2021 Journal Article Jin, X., Fang, Y., Salim, T., Feng, M., Yuan, Z., Hadke, S., Sum, T. C. & Wong, L. H. (2021). Controllable solution-phase epitaxial growth of Q1D Sb₂(S,Se)₃/CdS heterojunction solar cell with 9.2% efficiency. Advanced Materials, 33(44), 2104346-. https://dx.doi.org/10.1002/adma.202104346 0935-9648 https://hdl.handle.net/10356/160711 10.1002/adma.202104346 34510590 2-s2.0-85114677436 44 33 2104346 en MOE2016-T2-1-030 M4080514 Advanced Materials © 2021 Wiley-VCH GmbH. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
Hydrothermal Method
Vertical Growth
spellingShingle Engineering::Materials
Hydrothermal Method
Vertical Growth
Jin, Xin
Fang, Yanan
Salim, Teddy
Feng, Minjun
Yuan, Zhengtian
Hadke, Shreyash
Sum, Tze Chien
Wong, Lydia Helena
Controllable solution-phase epitaxial growth of Q1D Sb₂(S,Se)₃/CdS heterojunction solar cell with 9.2% efficiency
description Antimony sulfoselenide (Sb2 (S,Se)3 ) is a promising photoabsorber for stable and high efficiency thin film photovoltaics (PV). The unique quasi-1D (Q1D) crystal structure gives Sb2 (S,Se)3 intriguing anisotropic optoelectronic properties, which intrinsically require the optimization of crystal growth orientation, especially for electronic devices with vertical charge transport such as solar cells. Although the efficiency of Sb2 (S,Se)3 solar cells has been improved greatly through optimizing the material quality, the fundamental issue of crystal orientation control in polycrystalline films remains unsolved, resulting in charge carrier recombination losses in the device. Herein, the epitaxial growth of vertically-oriented Sb2 (S,Se)3 film on hexagonal CdS is successfully realized via a solution-based synergistic crystal growth process. The crystallographic orientation relationship between Sb2 (S,Se)3 light absorber and the CdS substrate has been rigorously investigated. The best performing Sb2 (S,Se)3 solar cell shows a high power conversion efficiency of 9.2% owing to the faster charge transport in the bulk and the efficient charge extraction across the heterojunction. This study points to a new direction to control the crystal growth of mixed-anion Sb2 (S,Se)3 , which is crucial to achieve high efficiency solar cells based on antimony chalcogenides with low dimensionality.
author2 School of Materials Science and Engineering
author_facet School of Materials Science and Engineering
Jin, Xin
Fang, Yanan
Salim, Teddy
Feng, Minjun
Yuan, Zhengtian
Hadke, Shreyash
Sum, Tze Chien
Wong, Lydia Helena
format Article
author Jin, Xin
Fang, Yanan
Salim, Teddy
Feng, Minjun
Yuan, Zhengtian
Hadke, Shreyash
Sum, Tze Chien
Wong, Lydia Helena
author_sort Jin, Xin
title Controllable solution-phase epitaxial growth of Q1D Sb₂(S,Se)₃/CdS heterojunction solar cell with 9.2% efficiency
title_short Controllable solution-phase epitaxial growth of Q1D Sb₂(S,Se)₃/CdS heterojunction solar cell with 9.2% efficiency
title_full Controllable solution-phase epitaxial growth of Q1D Sb₂(S,Se)₃/CdS heterojunction solar cell with 9.2% efficiency
title_fullStr Controllable solution-phase epitaxial growth of Q1D Sb₂(S,Se)₃/CdS heterojunction solar cell with 9.2% efficiency
title_full_unstemmed Controllable solution-phase epitaxial growth of Q1D Sb₂(S,Se)₃/CdS heterojunction solar cell with 9.2% efficiency
title_sort controllable solution-phase epitaxial growth of q1d sb₂(s,se)₃/cds heterojunction solar cell with 9.2% efficiency
publishDate 2022
url https://hdl.handle.net/10356/160711
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