| 학회 | 한국재료학회 |
| 학술대회 | 2012년 가을 (11/07 ~ 11/09, 라카이샌드파인 리조트) |
| 권호 | 18권 2호 |
| 발표분야 | C. 에너지/환경 재료(Energy and Environmental Materials) |
| 제목 | Improving Power Conversion Efficiency of Organic Photovoltaic Cells with CuOx Anode Buffer Layer |
| 초록 | Recently, researches in Polymer Solar Cell (PSC) are focused on enhancing Power Conversion Efficiency (PCE) and increasing lifetime. Many researchers achieved PCE improvement by using various buffer layers for enhancing charge carrier transportation. Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) (PEDOT:PSS), widely used buffer layer material, is degraded by oxygen and humidity. According to other researches, CuOx is more stable material than PEDOT:PSS. Therefore, we applied CuOx as buffer layer material to verify hole injection property. We fabricated PSC devices with metal oxide layer thickness variation (without a layer, 0.3nm, 0.5nm, 0.7nm, 1.0nm and 1.2nm) and optical property measuring samples (Transmittance, Reflectance and Absorption) by oxygen plasma treatment (200W, 100sccm, 200sec) to find optimum performance and optical properties of metal oxide layer. The device structures are Indium Tin Oxide (ITO)/Buffer Layer/Poly(3-hexylthiophene):Phenyl-C61-butyric acid methyl ester (P3HT:PCBM)/BCP/LiF/Al. We observed that device with CuOx as buffer layer showed the highest PCE of 2.612% at the thickness of 1nm, Open-Circuit Voltage (VOC) of 0.665V, Short-Circuit Current Density (JSC) of 6.75mA/cm2 and Fill Factor (FF) of 58.2%. It showed PCE, VOC and FF improvement of 9.33%, 4.72% and 8.99% than the device without buffer layer. Acknowledgement This work was supported by R&D Program of the Ministry of knowledge Economy. |
| 저자 | Jin-Seong Park1, Jee-Hye Lee2, Dal-Ho Kim1, Ji-Heon Kim2, Yeon-Hee Hwang3, Jae-Woo Shin2, Joo-Hyeong Park3, Jea-Gun Park2 |
| 소속 | 1Department of Electronic & Communication Engineering, 2Hanyang Univ., 3Advanced Semiconductor Material Device Development Center |
| 키워드 | CuOx; Organic solar cell; OPV |
