Organic Photovoltaic Devices Using Highly Flexible Reduced Graphene Oxide Films as Transparent Electrodes

被引:518
作者
Yin, Zongyou [1 ]
Sun, Shuangyong [1 ]
Salim, Teddy [1 ]
Wu, Shixin [1 ]
Huang, Xiao [1 ]
He, Qiyuan [1 ]
Lam, Yeng Ming [1 ]
Zhang, Hua [1 ,2 ]
机构
[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
[2] Nanyang Technol Univ, Ctr Biomimet Sensor Sci, Singapore 637553, Singapore
关键词
reduced graphene oxide; organic photovoltaic devices; flexible electrodes; optical transmittance; bending-induced tensile stress; POLYMER SOLAR-CELLS; INDIUM-TIN-OXIDE; MEMORY DEVICES; SINGLE; EFFICIENCY; DEPOSITION; ZNO; DNA;
D O I
10.1021/nn1015874
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The chemically reduced graphene oxide (rGO) was transferred onto polyethylene terephthalate (PET) substrates and then used as transparent and conductive electrodes for flexible organic photovoltaic (OPV) devices. The performance of the OPV devices mainly depends on the charge transport efficiency through rGO electrodes when the optical transmittance of rGO is above 65%. However, if the transmittance of rGO is less than 65%, the performance of the OPV device is dominated by the light transmission efficiency, that is, the transparency of rGO films. After the tensile strain (similar to 2.9%) was applied on the fabricated OPV device, it can sustain a thousand cycles of bending. Our work demonstrates the highly flexible property of rGO films, which provide the potential applications in flexible optoelectronics.
引用
收藏
页码:5263 / 5268
页数:6
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