Preparation and Properties of Polymer Solar Cells Based on Pt(Ⅱ) Containing Polyarylacetylene

Chem. J. Chinese Universities ›› 2010, Vol. 31 ›› Issue (9): 1855.

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Preparation and Properties of Polymer Solar Cells Based on Pt(Ⅱ) Containing Polyarylacetylene

XIE Pu-Hui^1*, GUO Feng-Qi²

1. College of Sciences, Henan Agricultural University, Zhengzhou 450002, China;
2. Department of Chemistry, Zhengzhou University, Zhengzhou 450001, China

Received:2009-11-26 Online:2010-09-10 Published:2010-09-10
Contact: XIE Pu-Hui. E-mail: pxie2007@yahoo.com.cn
Supported by:
教育部留学回国人员科研启动基金(批准号: ([2008]890, [2009]8)资助.

Abstract

Abstract: Three conjugated platinum containing polyarylacetylene were designed and synthesized. The absorption maxima were located at 433 nm for polymer 1, 411 nm for polymer 2 and 492 nm for polymer 3, attributed to their π-π* transition along the long axis. The photoluminescence of polymers 1 and 3 were dominated by phosphorescence. The fluorescence of polymer 3 was greatly quenched by polymer 2, at the same time the phosphorescence was slightly quenched. Both the triplet-triplet and singlet-singlet quenching mechanisms were involved in the photoinduced electron transfer process from excited polymer 3 to 2. The photo-electric properties of the solar cells fabricated with polymers 3 and 2 or with polymers 1 and 2 were investigated. Under the Air mass(AM) 1.5 illumination, the cell based on ITO/PEDOT∶PSS/3∶2/KF/Al generated a short circuit current density of 0.0045 mA/cm², an open circuit voltage of 0.89 V and a maximum overall power conversion efficiency of 0.1%. The weak photovoltaic features were attributed to the low conductive properties of the polymers, which was supported by the results of the electroluminescence experiment for polymer 3, and to the major singlet-singlet electron transfer process from excited polymer 3 to 2.

Key words: Pt-polyarylacetylene, Photoinduced electron transfer, Excited triplet state, Photo-electric property

TrendMD:

XIE Pu-Hui*, GUO Feng-Qi. Preparation and Properties of Polymer Solar Cells Based on Pt(Ⅱ) Containing Polyarylacetylene[J]. Chem. J. Chinese Universities, 2010, 31(9): 1855.

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Preparation and Properties of Polymer Solar Cells Based on Pt(Ⅱ) Containing Polyarylacetylene

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