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Performance improvement of solar cells using CuPc as a sensitizer
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/content/aip/journal/apl/92/7/10.1063/1.2884270
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FIG. 1.

(a) Schematic structure of the photovoltaic device. (b) Schematic energy level diagram of the photovoltaic device.

Image of FIG. 2.

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FIG. 2.

characteristics of the devices without CuPc and with thickness CuPc under AM1.5G illumination with the intensity of .

Image of FIG. 3.

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FIG. 3.

UV-visible absorption spectra for the various components of the photovoltaic device.

Image of FIG. 4.

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FIG. 4.

The dependence of and on the thicknesses of CuPc film.

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/content/aip/journal/apl/92/7/10.1063/1.2884270
2008-02-21
2014-04-23

Abstract

In this work, a new type of /polymer solar cells was fabricated. The devicestructure was indium tin oxide titanium dioxide / copper phthalocyanine (CuPc)/poly(3-hexylthiophene) (P3HT)/Au. In this architecture, was designed to act as electron acceptor, and P3HT was electron donor. CuPc was used as a sensitizer to enhance photon absorption. The results show that by inserting CuPc between P3HT and layers, the light absorption,excitons separation, and photocurrent under illumination are dramatically improved. The device has a short current density of and power conversion efficiency of 0.28% without CuPc layer. However, and turn to be and 0.66%, respectively, with a thickness CuPc layer under air mass 1.5 global (AM1.5G) illumination with the intensity of . The performance improvement can be attributed to the higher carrier mobility and the stronger photon absorption using CuPc as a sensitizing layer.

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Scitation: Performance improvement of TiO2∕P3HT solar cells using CuPc as a sensitizer
http://aip.metastore.ingenta.com/content/aip/journal/apl/92/7/10.1063/1.2884270
10.1063/1.2884270
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