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2022 Vol.32, Issue 5 Preview Page
Influence of Annealing Temperature on Crystal Orientation of Electrodeposited Sb2Se3 Thin-Film Photovoltaic Absorbers
Seonghyun Kim1
,
Seunghun Lee1
,
Jaehan Park1
,
Shinho Kim2
,
Yangdo Kim1†
1Department of Materials Science and Engineering, Pusan National University, Busan, 46241, Republic of Korea
2Innovative Graduate Education Program for Global High-tech Materials and Parts, Pusan National University, Busan, 46241, Republic of Korea
†Corresponding author E-Mail : yangdo@pusan.ac.kr (Y. Kim, Pusan Nat’l Univ.)
May 2022. pp. 243-248
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Abstract

This study demonstrates a different approach method to fabricate antimony selenide (Sb2Se3) thin-films for the solar cell applications. As-deposited Sb2Se3 thin-films are fabricated via electrodeposition route and, subsequently, annealed in the temperature range of 230 ~ 310°C. Cyclic voltammetry is performed to investigate the electrochemical behavior of the Sb and Se ions. The deposition potential of the Sb2Se3 thin films is determined to be -0.6 V vs. Ag/AgCl (in 1 M KCl), where the stoichiometric composition of Sb2Se3 appeared. It is found that the crystal orientations of Sb2Se3 thin-films are largely dependent on the annealing temperature. At an annealing temperature of 250 °C, the Sb2Se3 thin-film grew most along the c-axis [(211) and/or (221)] direction, which resulted in the smooth movement of carriers, thereby increasing the carrier collection probability. Therefore, the solar cell using Sb2Se3 thin-film annealed at 250 oC exhibited significant enhancement in JSC of 10.03 mA/cm2 and a highest conversion efficiency of 0.821 % because of the preferred orientation of the Sb2Se3 thin film.

Keywords
antimony selenide
V-VI compound semiconductor
thin-film solar cell
electrodeposition
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Information
  • Publisher :Materials Research Society of Korea
  • Publisher(Ko) :한국재료학회
  • Journal Title :Korean Journal of Materials Research
  • Journal Title(Ko) :한국재료학회지
  • Volume : 32
  • No :5
  • Pages :243-248
  • Received Date : 2022-04-04
  • Revised Date : 2022-05-17
  • Accepted Date : 2022-05-17
  • DOI :https://doi.org/10.3740/MRSK.2022.32.5.243
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