| 학회 |
한국재료학회 |
| 학술대회 |
2017년 가을 (11/15 ~ 11/17, 경주 현대호텔) |
| 권호 |
23권 2호 |
| 발표분야 |
G. 나노/박막 재료 분과 |
| 제목 |
Fabrication of Flexible CIGS Solar Cell Using Graphene Electrode on Cu Foil |
| 초록 |
Graphene has great potential to be used as electrode in many opto-electronic devices, owing to its superior optical and electrical properties. Graphene films have been employed as window electrode in various thin film solar cells. However, to date graphene film has not been used as back contact electrode, particularly in CIGS solar cells. In this work, we have demonstrated a novel structure for graphene-based flexible CIGS solar cell, in which graphene film on flexible Cu foil was implemented as back contact electrode. CIGS solar cells were directly fabricated on the chemical vapor deposited graphene film on Cu foil. Several techniques, including Raman spectroscopy, X-ray diffraction, scanning electron microscopy, have been used to investigate the device performance. The CIGS absorber layer were deposited on graphene by measureing XRD and TEM analysis. Characteristics of CIGS absorber layer on the graphene were almost identical to reference cell, fabricated using a conventional Mo/stainless steel electrode. Using graphene as back contact electrode may enhance open circuit voltage together with substantially large fill factor. It will be primarily responsible for high power conversion efficiency of graphene/Cu foil based device. This study provides a plausible implication of graphene as back contact electrode in flexible CIGS photovoltaic devices. |
| 저자 |
Jae-Kwan Sim1, San Kang2, Dae-Young Um3, Raju Nandi4, Jun-Yong Jo1, Hyeeun Kim2, Pil-Jun Kim3, Jung Hoon Yang4, Suel Lee1, Cheul-Ro Lee2
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| 소속 |
1School of Advanced Materials Engineering, 2Engineering College, 3Research Center for Advanced Materials Development (RCAMD), 4Chonbuk National Univ. |
| 키워드 |
Graphene; Flexible; CIGS solar cells;
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| E-Mail |
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