期刊
SOLAR ENERGY MATERIALS AND SOLAR CELLS
卷 95, 期 8, 页码 2531-2535出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solmat.2011.02.032
关键词
Dye sensitized solar cells; Flexible; Conductive paper substrate
资金
- California Energy Commission (San Diego State University Research Foundation)
This article reports for the first time in the literature, a dye sensitized solar cells with 1.21% efficiency (V(oc)=0.56 V, J(sc)=6.70 mA/cm(2) and F.F.=0.33) on paper substrates. The current dye sensitized solar cell technology is based on fluorine doped SnO(2) (FTO) coated glass substrates. The problem with the glass substrate is its rigidity and heavy weight. Making DSSCs on paper opens the door for both photovoltaic and paper industries. The potential of using mature paper making and coating technologies will greatly reduce the current PV cost. Paper substrate based DSSCs not only offer the advantages of flexibility, portability and lightweight but also provide the opportunities for easy implantation to textile. In this study, a low temperature process is developed to coat uniform nickel on paper substrate as the metal contact to replace the traditional expensive FTO. The Ni paper showed excellent conductivity of 8-10 Omega/rectangle. It is found that the control of metal oxide electrode morphology is critical to solar cell performance. The TiO(2) film has the tendency to crack on Ni coated paper, which resulted in the shunt of the device and no solar cell efficiency was obtained. ZnO film on the other hand had good morphology tolerance on Ni coated paper and yielded solar cell efficiency of 1.21% (V(oc)=0.56 V, J(sc)=6.70 mA/cm(2) and F.F.=0.33) under AM 1.5 (activation area is 0.16 cm(2)). The control sample of ZnO solar cell on FTO glasses has the efficiency of 2.66% (V(oc)=0.64 V, J(sc)=9.97 mA/cm(2) and F.F.=0.42). (C) 2011 Elsevier B.V. All rights reserved.
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