Photomask Effect in Organic Solar Cells With ZnO Cathode Buffer Layer
Photomask Effect in Organic Solar Cells With ZnO Cathode Buffer Layer
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DOI:
10.1109/led.2012.2207877
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发表时间:
2012-08
影响因子:
4.9
通讯作者:
Hyeong Pil Kim;M. Ryu;Jun-Ho Youn;A. R. bin Mohd Yusoff;Jin Jang
中科院分区:
文献类型:
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作者:
Hyeong Pil Kim;M. Ryu;Jun-Ho Youn;A. R. bin Mohd Yusoff;Jin Jang
In this letter, we report on the performance of conventional bulk heterojunction organic solar cell (OSC) incorporating a solution-processed zinc oxide (ZnO) spin coated on the photoactive layer regioregular poly(3-hexylthiophene):indene-C60 bis adduct. We show a significant improvement in short-circuit current density (Jsc) upon an introduction of ZnO, and this is further evidenced by the reduction of Jsc leading to a lower PCE in the device without the presence of ZnO. Furthermore, we also examined the “photomask” on the performance of ZnO-based device yielding a decrease in both Jsc and open-circuit voltage Voc (of about 13.42% and 0.73%, respectively) but an increase in filling factor. Results demonstrate that ZnO plays an important role in the improvement of OSCs' performance.