[논문]페로브스카이트 태양전지 안정성 개선을 위한 광활성층 연구 현황과 전망

송재관; 김도형

doi:10.9713/kcer.2020.58.1.1

페로브스카이트 태양전지 안정성 개선을 위한 광활성층 연구 현황과 전망
Future Prospect of Perovskite Solar Cells for Practical Applications 원문보기

Korean chemical engineering research = 화학공학, v.58 no.1, 2020년, pp.1 - 20

송재관 (전남대학교 화학공학부) , 김도형 (전남대학교 화학공학부)

초록
AI-Helper

화석 연료를 이용하는 에너지원이 심각한 환경오염을 일으키고, 인류의 건강한 삶에 큰 영향을 주어 청정한 에너지 자원의 개발은 매우 중요한 이슈가 되었다. 화석 연료를 대체하기 위한 다양한 에너지원의 개발이 진행되고 있으며, 그 중 최근에는 태양 전지에 대한 관심이 점차 커지고 있다. 현재 실용화 되어 있는 태양전지는 실리콘 기반 태양전지인데, 제조비용이 큰 단점이 부각되고 있으며 이에 따라 이의 단점을 개선하기 위한 노력과 동시에 실리콘 기반 태양전지를 대체하려는 시도가 이루어지고 있다. 이중 실리콘 기반 태양전지를 대체할 후보로 페로브스카이트 태양전지가 큰 관심을 받고 있는데, 그 이유는 높은 광전 변환 효율, 저렴한 제조비용, 유연한 형태로의 제조 가능성 때문이다. 그러나 현재 보고되고 있는 페로브스카이트 태양전지는 장기적 안정성이 떨어지며, 또 납으로 인해 신체에 유해하다는 큰 단점을 가지고 있다. 본 리뷰에서는 페로브스카이트 태양전지의 장기적 안정성을 높이는 방안들 그리고 환경적으로 유해한 납을 사용하지 않는 방안들의 최신 연구 방향 동향에 관하여 살펴보았다.

Abstract ▼ AI-Helper

Development of efficient methods for clean energy production became a critical issue to improve the quality of human lives. Solar cells is considered as one of the alternative solutions to resolve the issue. Although Si-based solar cells are only popularly utilized for practical applications, high manufacturing cost is considered as a serious drawback for further versatile applications. Thus, different types of are being investigated aiming to replace the Si-based solar cells. Recently, perovskite solar cells (PSC) are considered as a potential replacement for Si-based solar cells due to their low production cost, high power conversion efficiency, light weight and possibility of flexible device fabrication. Thus, we have reviewed the challenges of PSC faced with practical application, particularly on stability.

주제어

표/그림 (23)

그림 Fig. 1. Structure of solar cell.
그림 Fig. 2. Schematic diagram of various perovskite solar cells.
그림 Fig. 3. (a) Perovskite active layer surface SEM image by Rb dddition, (b) Distribution of solar cell hysteresis by cationic type [87].
그림 Fig. 4. (A) Cs0, (b) Cs5, (c) Cs10 perovskite active layer surface SEM image with Cs addition, (d) Cs-based perovskite solar cell electrical characteristics long-term stability change [88].
그림 Fig. 5. SEM image of perovskite active layer surface with addition of Cs and Rb [89].
그림 Fig. 6. (a) Perovskite solar cell electrical characteristics long-term stability change, (b) perovskite active layer XRD I 3d peak [90].
그림 Fig. 7. (a) J-V curve of perovskite solar cell with diameter of alkali metal ion and each ion added, (b) ratio of cation and anion for each alkali metal ion, (c) perovskite photoactivity with addition of KI Layer surface SEM image [85].
그림 Fig. 8. (a) AFM image and surface, cross-sectional SEM image of each perovskite active layer, (b) TRPL distribution and (c) Nyquist plot of perovskite added MAPbI₃ and MAPbI₃ + 0.005% J71 [93].
그림 Fig. 9. (a) Perovskite photoactive layer surface SEM image for each perovskite active layer, (b) PL graph, (c) Nyquist plot of photocurrent and photovoltage [93].
그림 Fig. 11. XRD data over time of (a) MAPbI₃ and (b) BA₂MA₄Pb₅I₁₆ and (c) PbI₂ peak change over time [95].
그림 Fig. 10. (a) Perovskite active layer TRPL distribution for each added substance, (b) perovskite solar cell changes in electrical characteristics with time [94].
그림 Fig. 12. (a) Structure of perovskite solar cell and schematic diagram of water molecular penetration according to PEO and PS addition, (b) Existing perovskite active layer, PS added perovskite active layer, PEO added perovskite active layer time Photo image according to change of 15 days at 88% humidity [96].
그림 Fig. 13. (a) Schematic and digital image with and without surface passivation, (b) J-V curve with and without passivation of perovskite solar cell device [97].
그림 Fig. 14. (a) Schematic diagram of perovskite active layer structure change before and after light, (b) electrical characteristics by perovskite active layer long-term stability [99].
그림 Fig. 15. (a) Efficiency loss graph according to the amount of salt added to perovskite active layer, (b) Efficiency loss graph over time [100].
그림 Fig. 16. (a) Sn, Pb based perovskite solar cell electrical characteristic distribution, (b) J-V curve of each perovskite solar cell [103].
그림 Fig. 17. Graph of electrical characteristics change over time of MASbSI₂ [104].
그림 Fig. 18. J-V curve by perovskite active layer structure and amount of N₂H₄ added [105].
그림 Fig. 19. FA_0.75MA_0.25Sn_1-xGe_xI₃ perovskite according to the amount of Ge added, active layer surface AFM image according to (a) x = 0, (b) x = 0.05, (c) x = 0.10, (d) x = 0.20, (e) J-V curve per perovskite solar cell and (f) efficiency change with time [106].
그림 Fig. 20. SEM image of perovskite active layer surface according to amount of SnF2 added: (a) 0 mol%, (b) 5 mol%, (c) 10 mol%, (d) 15 mol%, (e) 20 mol%, ( f) 30 mol% [107].
그림 Fig. 21. XRD peak change and summary graphs over yime perovskite active layer [108].
그림 Fig. 22. The amount of the two-dimensional structure added to the three-dimensional FASnI₃ perovskite (a) 0, (b) 0.08, (c) 0.12, (d) 0.16 surface SEM image of perovskite active layer, (e) PL peak graph according to the wavelength and (f) TRPL graph [109].
표 Table 1. Perovskite Solar Cell Issue Comparison

질의응답

핵심어	질문	논문에서 추출한 답변
	태양전지란 무엇인가?	태양전지는 태양 빛 에너지를 전기 에너지로 바꾸어주는 장치이다. 태양 빛을 이용하므로 자원의 고갈 위험이 없으며, 인체에 해가 없는 에너지 자원이다.
	페로브스카이트 태양전지는 크게 무엇으로 구분되는가?	Fig. 2에 나타낸 바와 같이 페로브스카이트 태양전지는 크게 정구조형 페로브스카이트 태양전지와 역구조형 페로브스카이트형 태양전지로 구분된다. 정구조형 페로브스카이트 태양전지는 기판 위에 전자수송층, 페로브스카이트 광활성층, 정공수송층, 전극의 구조로 되어있다.
	실리콘 태양전지의 한계점은 무엇인가?	오래전부터 시작한 연구로 인해 많은 성과를 보이는 상태이다. 하지만 값비싼 가격과 어려운 공정 등의 다양한 한계점들로 인해 대체할 방법들이 연구되고 있다. 다양한 방법 중에서도 페로브스카이트 태양전지는 가격이 싸며, 간단한 공정으로 이를 대체할 수 있는 수단이 될 수 있다.

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Zhang, P., Wu, J., Zhang, T., Wang, Y., Liu, D., Chen, H., Ji, L., Liu, C., Ahmad, W., Chen, Z. D. and Li, S., "Perovskite Solar Cells with ZnO Electron-transporting Materials," Adv. Mater., 30, 1703737(2018).

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Jiang, J., Wang, Q., Jin, Z., Zhang, X., Lei, J., Bin, H., Zhang, Z. G., Li, Y. and Liu, S. F., "Polymer Doping for High-Efficiency Perovskite Solar Cells with Improved Moisture Stability," Adv. Energy Mater., 8, 1701757(2018).

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표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

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저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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