Key Factors Affecting the Performance of Sb2S3-sensitized Solar Cells During an Sb2S3 Deposition via SbCl3-thiourea
Yong Chan Choi1, Sangl Il Seok2, Eunjeong Hwang3
1Convergence Research Center for Solar Energy, Daegu Gyeongbuk Institute of Science and Technology (DGIST); ycchoi@dgist.ac.kr.
Journal of Visualized Experiments : Jove
|July 31, 2018
Summary
Antimony trisulfide (Sb2S3) shows promise for next-generation solar cells. A simple solution method achieved over 6% photovoltaic efficiency in Sb2S3-sensitized solar cells, highlighting its potential.
Area of Science:
- Materials Science
- Photovoltaics
- Nanotechnology
Background:
- Antimony trisulfide (Sb2S3) is an emerging semiconductor material with favorable optical and electrical properties for solar cell applications.
- Recent advancements have demonstrated Sb2S3's potential in next-generation solar cells, achieving over 6% photovoltaic efficiency.
- The development of cost-effective and scalable fabrication methods is crucial for realizing Sb2S3-based solar technologies.
Purpose of the Study:
- To detail the experimental procedures for depositing Sb2S3 thin films using a thiourea (TU)-based complex solution.
- To investigate the influence of SbCl3:TU molar ratios on Sb2S3 film properties and solar cell performance.
- To optimize the fabrication process for efficient Sb2S3-sensitized solar cells.
Main Methods:
- Synthesis of SbCl3-TU complex solutions in N,N-dimethylformamide with varying SbCl3:TU molar ratios.
- Deposition of Sb2S3 precursor films onto mesoporous TiO2 (mp-TiO2) layers via spin coating.
- Annealing of Sb2S3 films at 300 °C in a nitrogen atmosphere to achieve crystalline Sb2S3.
Main Results:
- Successful deposition of Sb2S3 thin films on mp-TiO2 substrates using the SbCl3-TU complex solution method.
- Demonstration of Sb2S3-sensitized solar cells with photovoltaic efficiencies exceeding 6%.
- Analysis of how experimental parameters, including molar ratios and annealing, impact device performance.
Conclusions:
- The thiourea (TU)-based complex solution method provides a viable route for fabricating Sb2S3 thin films for solar cells.
- Sb2S3 is a promising light absorber for next-generation photovoltaic devices.
- Further optimization of fabrication parameters can lead to enhanced photovoltaic performance.
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