| 학회 |
한국재료학회 |
| 학술대회 |
2016년 가을 (11/16 ~ 11/18, 경주 현대호텔) |
| 권호 |
22권 2호 |
| 발표분야 |
C. 에너지 재료 분과 |
| 제목 |
Fabrication of an efficient Cu2Sn(SxSe1-x)(CTSSe) thin film solar cells by sulfo-Selenization of Sputtered precursors |
| 초록 |
Ternary chalcogenide semiconductor Cu2Sn(SxSe1-x)(CTSSe) is an very emerging material to replace Cu(In,Ga)(S,Se)2 (CIGSSe), Cu2(Zn,Sn)(S,Se)4 (CZTSSe) based thin film solar cells (TFSCs) with suitable optical band gap energy ranging from 0.93 to 1.77 eV and high absorption coefficients (＞104 cm-1). Here we report sputtering based deposition route to prepare high quality CTSSe thin films. Further, the influence of different working condition on the properties has been investigated systematically. CTSSe thin films were synthesized by sulfo-selenization of the DC sputtered Cu/Sn stacked metallic precursors. The sulfo-selenization of Cu/Sn stacked metallic precursor thin films has been carried out in a graphite box using rapid thermal annealing(RTA) technique. Annealing process was done under sulfur and selenium vapor pressure using Ar gas at 580℃ for 10min. The structural, morphological, chemical, and optical properties of CTSSe thin films were investigated using X-ray diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), UV-Visible spectroscopy and Raman spectroscopy, respectively. The solar cell is fabricated with the device structure of glass/Mo/CTSSe/CdS/i-ZnO/AZO/Al. The preliminary power conversion efficiency of 1.89% with a short circuit current density of 30.4mA/cm2, an open circuit voltage of 154.2mV, and a fill factor of 40% have been obtained, although the processing parameters are not yet optimized. |
| 저자 |
Ju Yeon Lee1, In Young Kim2, Chang Woo Hong3, Jong Ha Moon4, Jin Hyeok Kim1
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| 소속 |
1Department of Materials Science and Engineering and Optoelectronics Convergence Research Center, 2Chonnam National Univ., 3School of Information and Communications, 4Gwangju Institute of Science and Technology |
| 키워드 |
Cu2SnS3(CTS); Cu2Sn(SxSe1-x)3(CTSSe); Sputtering; Rapid Thermal Annealing; Thin Film Solar cells
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| E-Mail |
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