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Efficient organic photovoltaic cells on a single layer graphene transparent conductive electrode using MoOx as an interfacial layer
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.; 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.
2017-01-07
Source PublicationROYAL SOC CHEMISTRY
ISSN2040-3364
Volume9Issue:1Pages:251-257
AbstractThe 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.; 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.
description.department[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
Subject AreaChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
Funding OrganizationNational 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
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/79191
Collection中国科学院金属研究所
Corresponding AuthorDu, 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.
Recommended Citation
GB/T 7714
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.
APA Du, J. H..,Jin, H..,Zhang, Z. K..,Zhang, D. D..,Jia, S..,...&Jin, H .(2017).Efficient organic photovoltaic cells on a single layer graphene transparent conductive electrode using MoOx as an interfacial layer.ROYAL SOC CHEMISTRY,9(1),251-257.
MLA Du, J. H.,et al."Efficient organic photovoltaic cells on a single layer graphene transparent conductive electrode using MoOx as an interfacial layer".ROYAL SOC CHEMISTRY 9.1(2017):251-257.
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