| 학회 |
한국재료학회 |
| 학술대회 |
2016년 가을 (11/16 ~ 11/18, 경주 현대호텔) |
| 권호 |
22권 2호 |
| 발표분야 |
C. 에너지 재료 분과 |
| 제목 |
Interface analysis of monolithic ACIGS/CIGS tandem solar cell |
| 초록 |
Recently CIGS solar cell wih bandgap of ~1.2 eV demostrated conversion efficiencies over 22%. And then it is developed to optimize the structure of the tandem solar cell to reach efficiencies over 25% due to limitations of maximum theoretical and experimental efficiency of single-junction solar cell. The focus of this paper is a proof of concept of the ACIGS/CIGS monolithic structure and control band gap and transparent of the top cell absorber. Ag doped CIGS thin films provide several advantages such as increasing the optical bandgap and grain size with lower defect. In this paper, we demonstrated characteristics of the monolithic ACIGS/CIGS tandem structure. The prepared ACIGS and ACIGS/CIGS thin films were analyzed by energy dispersive X-ray (EDX), scanning electron microscopy (SEM), ion beam scanning electron microscopy, secondary ion mass spectrometry (SIMS) and transmittance electron microscopy (TEM). The electrical parameters of tandem solar cell were measured by light I-V (AM 1.5 G, 25 °C, 100 mV/cm2) and external quantum efficiency (EQE). |
| 저자 |
최장훈1, 윤재호1, 유진수1, 공성호2, 김기환1
|
| 소속 |
1한국에너지기술(연), 2경북대 |
| 키워드 |
AgCuInGaSe2 thin film(ACIGS 박막); CIGS2 thin film( CIGS 박막); Wide band gap(넓음 밴드갭); Tandem Solar Cell(탠덤태양전지)
|
| E-Mail |
|
