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author:

Deng, H. (Deng, H..) [1] (Scholars:邓辉) | Feng, X. (Feng, X..) [2] | Zhu, Q. (Zhu, Q..) [3] | Liu, Y. (Liu, Y..) [4] | Wang, G. (Wang, G..) [5] | Zhang, C. (Zhang, C..) [6] (Scholars:张彩霞) | Zheng, Q. (Zheng, Q..) [7] (Scholars:郑巧) | Wu, J. (Wu, J..) [8] (Scholars:吴炯桦) | Wang, W. (Wang, W..) [9] (Scholars:王伟煌) | Cheng, S. (Cheng, S..) [10] (Scholars:程树英)

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Scopus

Abstract:

Antimony sulfide (Sb2S3) solar cells fabricated via hydrothermal deposition have attracted widespread attention. The annealing crystallization process plays a crucial role in achieving optimal crystallinity in hydrothermal Sb2S3 thin films. Nevertheless, incomplete crystallization and the loss of sulfur at high-temperature contribute to defect recombination, constraining device performance. Herein, a two-step rapid thermal processing (RTP) annealing strategy is proposed to improve the crystal quality and efficiency of Sb2S3 solar cells. The annealing process in Ar protection with atmospheric pressure can suppress S loss caused by saturated vapor pressure. The two-step RTP annealing with the 330°C low-temperature and 370°C high-temperature process ensures high crystallinity and vertical orientations of Sb2S3 thin films, accompanied by a reduction in defect concentration from 1.01 × 1012 to 5.97 × 1011 cm−3. The Sb2S3 solar cell achieves an efficiency of 8.20% with an enhanced open circuit voltage (VOC) of 784 mV. The build-in voltage (Vbi) of 1.17 V and irradiation-dependent ideal factor (n) of 1.48 demonstrate enhanced heterojunction quality and suppressed defect recombination in the devices. The presented two-step annealing strategy and physical mechanism study will open new prospects for high-performance Sb2S3 solar cells. © Science China Press 2024.

Keyword:

defect passivation hydrothermal Sb2S3 solar cells two-step annealing

Community:

  • [ 1 ] [Deng H.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 2 ] [Deng H.]Fujian Science & amp
  • [ 3 ] Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 4 ] [Feng X.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 5 ] [Zhu Q.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 6 ] [Liu Y.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 7 ] [Wang G.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 8 ] [Zhang C.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 9 ] [Zheng Q.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 10 ] [Wu J.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 11 ] [Wu J.]Fujian Science & amp
  • [ 12 ] Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China
  • [ 13 ] [Wang W.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 14 ] [Cheng S.]College of Physics and Information Engineering, Institute of Micro-Nano Devices and Solar Cells, Fuzhou University, Fuzhou, 350108, China
  • [ 15 ] [Cheng S.]Fujian Science & amp
  • [ 16 ] Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou, 213164, China
  • [ 17 ] Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, 350108, China, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou, 213164, China

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Source :

Science China Materials

ISSN: 2095-8226

Year: 2024

Issue: 11

Volume: 67

Page: 3666-3674

6 . 8 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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