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The application of highly doped single-layer graphene as the top electrodes of semitransparent organic solar cells.
ACS Nano. 2012 Jan 24; 6(1):810-8.AN

Abstract

A single-layer graphene film with high conductance and transparency was realized by effective chemical doping. The conductance of single-layer graphene was increased for more than 400% when it was doped with Au nanoparticles and poly(3,4-ethylenedioxythiophene): poly(styrene sulfonic acid). Then semitransparent organic solar cells based on poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) were fabricated with single-layer graphene and indium tin oxide (ITO) as the top and bottom electrodes, respectively. The performance of the devices was optimized by tuning the active layer thickness and doping the single-layer graphene electrodes. The maximum efficiency of 2.7% was observed in the devices with the area of 20 mm(2) illuminated from graphene electrode under the AM1.5 solar simulator. It is notable that all of the devices showed higher efficiency from the graphene than ITO side, which was attributed to the better transmittance of the graphene electrodes. In addition, the influence of the active area of the organic solar cell on its photovoltaic performance was studied. We found that, when the active areas increased from 6 to 50 mm(2), the power conversion efficiencies decreased from 3% to 2.3% because of the increased series resistances and the decreased edge effect of the devices.

Authors+Show Affiliations

Department of Applied Physics and Materials Research Centre, The Hong Kong Polytechnic University, Hong Kong, China.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22148872

Citation

Liu, Zhike, et al. "The Application of Highly Doped Single-layer Graphene as the Top Electrodes of Semitransparent Organic Solar Cells." ACS Nano, vol. 6, no. 1, 2012, pp. 810-8.
Liu Z, Li J, Sun ZH, et al. The application of highly doped single-layer graphene as the top electrodes of semitransparent organic solar cells. ACS Nano. 2012;6(1):810-8.
Liu, Z., Li, J., Sun, Z. H., Tai, G., Lau, S. P., & Yan, F. (2012). The application of highly doped single-layer graphene as the top electrodes of semitransparent organic solar cells. ACS Nano, 6(1), 810-8. https://doi.org/10.1021/nn204675r
Liu Z, et al. The Application of Highly Doped Single-layer Graphene as the Top Electrodes of Semitransparent Organic Solar Cells. ACS Nano. 2012 Jan 24;6(1):810-8. PubMed PMID: 22148872.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The application of highly doped single-layer graphene as the top electrodes of semitransparent organic solar cells. AU - Liu,Zhike, AU - Li,Jinhua, AU - Sun,Zhen-Hua, AU - Tai,Guoan, AU - Lau,Shu-Ping, AU - Yan,Feng, Y1 - 2011/12/16/ PY - 2011/12/14/entrez PY - 2011/12/14/pubmed PY - 2012/5/16/medline SP - 810 EP - 8 JF - ACS nano JO - ACS Nano VL - 6 IS - 1 N2 - A single-layer graphene film with high conductance and transparency was realized by effective chemical doping. The conductance of single-layer graphene was increased for more than 400% when it was doped with Au nanoparticles and poly(3,4-ethylenedioxythiophene): poly(styrene sulfonic acid). Then semitransparent organic solar cells based on poly(3-hexylthiophene) (P3HT) and phenyl-C61-butyric acid methyl ester (PCBM) were fabricated with single-layer graphene and indium tin oxide (ITO) as the top and bottom electrodes, respectively. The performance of the devices was optimized by tuning the active layer thickness and doping the single-layer graphene electrodes. The maximum efficiency of 2.7% was observed in the devices with the area of 20 mm(2) illuminated from graphene electrode under the AM1.5 solar simulator. It is notable that all of the devices showed higher efficiency from the graphene than ITO side, which was attributed to the better transmittance of the graphene electrodes. In addition, the influence of the active area of the organic solar cell on its photovoltaic performance was studied. We found that, when the active areas increased from 6 to 50 mm(2), the power conversion efficiencies decreased from 3% to 2.3% because of the increased series resistances and the decreased edge effect of the devices. SN - 1936-086X UR - https://www.unboundmedicine.com/medline/citation/22148872/The_application_of_highly_doped_single_layer_graphene_as_the_top_electrodes_of_semitransparent_organic_solar_cells_ L2 - https://doi.org/10.1021/nn204675r DB - PRIME DP - Unbound Medicine ER -