화학공학소재연구정보센터
학회 한국재료학회
학술대회 2021년 봄 (05/12 ~ 05/14, 광주 김대중컨벤션센터)
권호 27권 1호
발표분야 C. 에너지 재료 분과
제목 Effect of Zn(O,S) buffer layer deposition temperature on the performance of flexible Cu2ZnSn(S,Se)4(CZTSSe) thin film solar cells
초록 Recently, Cu2ZnSn(S, Se)4 (CZTSSe) solar cells have have attracted great attention by the utility of earth abundant elements to replace the In and Ga of the well-developed Cu(In,Ga)(S, Se)2 (CIGS) absorbers. CdS is one of the most researched buffer materials and is generally deposited by a chemical bath deposition (CBD) method. Due to the toxicity of Cd, many studies have attempted to replace CdS with Cd-free buffer layers. Zn(O, S) is a promising candidate to replace CdS buffer with a wide band gap and non-toxic material. In addition, alternative Cd-free buffer layers deposited by atomic layer deposition (ALD) may be more advantageous for industrial production compared to CBD processes, primarily due to less chemical waste and the possibility of a complete vacuum-based production line. In this work, a CZTSSe solar cell with Zn(O,S) buffer was fabricated on a flexible substrate using ALD method. The effect of the temperature of Zn(O,S) deposition on the CZTSSe solar cell was investigated. The optimum Zn(O,S) deposition temperature is a 100°C as shown by atomic force microscope(AFM).
저자 김수길, 김진혁
소속 전남대
키워드 Cu<SUB>2</SUB>ZnSn(S; Se)<SUB>4</SUB>(CZTSSe); flexible substrates; NaF doping; thin film solar cells (TFSCs)
E-Mail jinhyeok@jnu.ac.kr