Poly (thienylene methine) grafted nanocrystalline TiO 2 based hybrid solar cells

Author: Lu Shengli  

Publisher: Springer Publishing Company

ISSN: 0957-4522

Source: Journal of Materials Science: Materials in Electronics, Vol.23, Iss.1, 2012-01, pp. : 251-256

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Abstract

A novel hybrid solar cell fabricated from TiO2 and in situ polymerized poly (thienylene methane) (PTBBQ) onto the surface of TiO2 was described. 1HNMR, FTIR, UV-Vis absorption, thermal and electrochemical properties of PTBBQ were investigated, and the surface morphology of TiO2/in situ polymerized PTBBQ film was studied via AFM contact mode. Device I/V characterizations with and without in situ polymerized PTBBQ were measured. Efficiency improvements were observed in the in situ polymerized PTBBQ/TiO2 system, and such device showed a short-circuit current density of 1.15 mA/cm2, an open-circuit voltage of 0.50 V, a fill factor of 0.50, and a energy conversion efficiency of 0.29% at A.M. 1.5 solar illumination (100 mW/cm2).

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