UV-treated graphene oxide as anode interfacial layers for P3HT: PCBM solar cells

被引:4
作者
Cheng, Cheng-En [1 ,2 ]
Tsai, Cheng-Wei [2 ]
Pei, Zingway [3 ]
Lin, Tsung-Wu [4 ]
Chang, Chen-Shiung [1 ]
Chien, Forest Shih-Sen [2 ]
机构
[1] Natl Chiao Tung Univ, Dept Photon, Hsinchu, Taiwan
[2] Tunghai Univ, Dept Appl Phys, Taichung 40704, Taiwan
[3] Natl Chung Hsing Univ, Grad Inst Optoelect Engn, Dept Elect Engn, Taichung 40227, Taiwan
[4] Tunghai Univ, Dept Chem, Taichung 40704, Taiwan
关键词
polymer solar cells; graphene oxide; anode interfacial layer; hole collection; EFFICIENT; IMPEDANCE; FILMS;
D O I
10.1088/0022-3727/48/25/255103
中图分类号
O59 [应用物理学];
学科分类号
摘要
Solution-processable graphene oxide (GO) ultrathin films were introduced as anode interfacial layers (AILs) for polymer solar cells (PSCs). The photovoltaic performance of PSCs containing thermal-and UV-treated GO was comparable to that of PSCs with conventional poly(3,4-ethyledioxythiphene): poly(styrenesulfonate) AILs. UV treatment induced the surface activation of GO; an increase in the work function of UV-treated GO improved the energy band alignment at the GO/poly(3-hexylthiophene) interface, which accounted for the efficient hole collection and photovoltaic performance of PSCs with treated GO.
引用
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页数:8
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