Efficiency Enhancement of MEH-PPV:PCBM Solar Cells by Addition of Ditertutyl Peroxide as an Additive
LI Yan-Fang1,2, YANG Li-Ying1,2**, QIN Wen-Jing1,2**, YIN Shou-Gen1,2**, ZHANG Feng-Ling1,3
1Key Laboratory of Display Materials & Photoelectric Devices (Ministry of Education) and School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384 2Tianjin Key Lab for Photoelectric Materials & Devices, Tianjin 300384 3Biomolecular and Organic Electronics, Center of Organic Electronics, Department of Physics, Chemistry and Biology (IFM), Link?ping University, SE-581 83 Link?ping, Sweden
Abstract：Improved power conversion efficiency (PCE) and stability of organic bulk heterojunction (BHJ) solar cells based on poly (2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene) (MEH-PPV) and methanofullerene [6,6]-phenyl C61-butyric acid methyl ester (PCBM) blends are obtained by using ditert butyl peroxide (DTBP) as an additive. The effect of the DTBP contents on the performance of photovoltaic cells is investigated. The results reveal that efficiency enhancement of MEH-PPV:PCBM solar cells can be realized by carefully tuning the contents of DTBP. Compared to the control device, the optimized device with 0.5wt% DTBP additive exhibits enhanced performance with Jsc of (3.51±0.21) mA/cm2, FF of (44.45±0.71)%, and PCE of (1.31±0.08)%, increased by 9.3%, 8.0% and 22.4%, respectively. The stability of the device is found to be improved by adding 0.5wt% of DTBP.
. [J]. Chin. Phys. Lett., 2013, 30(1): 17202-017202.
LI Yan-Fang, YANG Li-Ying, QIN Wen-Jing, YIN Shou-Gen, ZHANG Feng-Ling. Efficiency Enhancement of MEH-PPV:PCBM Solar Cells by Addition of Ditertutyl Peroxide as an Additive. Chin. Phys. Lett., 2013, 30(1): 17202-017202.
2013, Vol. 30 
