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题名: Efficient organic photovoltaic cells on a single layer graphene transparent conductive electrode using MoOx as an interfacial layer
作者: Du, J. H.;  Jin, H.;  Zhang, Z. K.;  Zhang, D. D.;  Jia, S.;  Ma, L. P.;  Ren, W. C.;  Cheng, H. M.;  Burn, P. L.
通讯作者: Du, JH (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China.;  Jin, H (reprint author), Univ Queensland, Ctr Organ Photon & Elect, Brisbane, Qld 4072, Australia.
发表日期: 2017-1-7
学科主题: Chemistry, Multidisciplinary;  Nanoscience & Nanotechnology;  Materials Science, Multidisciplinary;  Physics, Applied
摘要: The large surface roughness, low work function and high cost of transparent electrodes using multilayer graphene films can limit their application in organic photovoltaic (OPV) cells. Here, we develop single layer graphene (SLG) films as transparent anodes for OPV cells that contain light-absorbing layers comprised of the evaporable molecular organic semiconductor materials, zinc phthalocyanine (ZnPc)/fullerene (C60), as well as a molybdenum oxide (MoOx) interfacial layer. In addition to an increase in the optical transmittance, the SLG anodes had a significant decrease in surface roughness compared to two and four layer graphene (TLG and FLG) anodes fabricated by multiple transfer and stacking of SLGs. Importantly, the introduction of a MoOx interfacial layer not only reduced the energy barrier between the graphene anode and the active layer, but also decreased the resistance of the SLG by nearly ten times. The OPV cells with the structure of polyethylene terephthalate/SLG/MoOx/CuI/ZnPc/C60/bathocuproine/Al were flexible, and had a power conversion efficiency of up to 0.84%, which was only 17.6% lower than the devices with an equivalent structure but prepared on commercial indium tin oxide anodes. Furthermore, the devices with the SLG anode were 50% and 86.7% higher in efficiency than the cells with the TLG and FLG anodes. These results show the potential of SLG electrodes for flexible and wearable OPV cells as well as other organic optoelectronic devices.
资助者: National Science Foundation of China [51572265, 51325205, 51521091]; Ministry of Science and Technology of China [2016YFA0200101]; Chinese Academy of Sciences [KGZD-EW-303-1, KGZD-EW-303-3]; Australian Government through the Australian Renewable Energy Agency (ARENA) Australian Centre for Advanced Photovoltaics
英文摘要: The large surface roughness, low work function and high cost of transparent electrodes using multilayer graphene films can limit their application in organic photovoltaic (OPV) cells. Here, we develop single layer graphene (SLG) films as transparent anodes for OPV cells that contain light-absorbing layers comprised of the evaporable molecular organic semiconductor materials, zinc phthalocyanine (ZnPc)/fullerene (C60), as well as a molybdenum oxide (MoOx) interfacial layer. In addition to an increase in the optical transmittance, the SLG anodes had a significant decrease in surface roughness compared to two and four layer graphene (TLG and FLG) anodes fabricated by multiple transfer and stacking of SLGs. Importantly, the introduction of a MoOx interfacial layer not only reduced the energy barrier between the graphene anode and the active layer, but also decreased the resistance of the SLG by nearly ten times. The OPV cells with the structure of polyethylene terephthalate/SLG/MoOx/CuI/ZnPc/C60/bathocuproine/Al were flexible, and had a power conversion efficiency of up to 0.84%, which was only 17.6% lower than the devices with an equivalent structure but prepared on commercial indium tin oxide anodes. Furthermore, the devices with the SLG anode were 50% and 86.7% higher in efficiency than the cells with the TLG and FLG anodes. These results show the potential of SLG electrodes for flexible and wearable OPV cells as well as other organic optoelectronic devices.
部门归属: [Du, J. H.;  Zhang, Z. K.;  Zhang, D. D.;  Jia, S.;  Ma, L. P.;  Ren, W. C.;  Cheng, H. M.] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China;  [Jin, H.;  Burn, P. L.] Univ Queensland, Ctr Organ Photon & Elect, Brisbane, Qld 4072, Australia
刊名: ROYAL SOC CHEMISTRY
收录类别: SCI
内容类型: 期刊论文
URI标识: http://ir.imr.ac.cn/handle/321006/79191
ISSN号: 2040-3364
语种: 英语
Appears in Collections:中国科学院金属研究所_期刊论文

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Recommended Citation:
Du, J. H.,Jin, H.,Zhang, Z. K.,et al. Efficient Organic Photovoltaic Cells On A Single Layer Graphene Transparent Conductive Electrode Using Moox As An Interfacial Layer[J]. Royal Soc Chemistry,2017,9(1):251-257.

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