Influence of Morphology of Vacuum-Evaporated Oligothiophene Derivative Films on Oganic Photovoltaic Performance

Xue Quan Zhao; Li Guan; Yi Ping Zhong; Ping Liu; Wen Ji Deng

doi:10.4028/www.scientific.net/SSP.181-182.320

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HomeSolid State PhenomenaSolid State Phenomena Vols. 181-182Influence of Morphology of Vacuum-Evaporated...

Influence of Morphology of Vacuum-Evaporated Oligothiophene Derivative Films on Oganic Photovoltaic Performance

Abstract:

In order to understand the influence of morphology of vacuum-evaporated conjugated organic thin film on organic photovoltaic performance, oligothiophene derivatives, 2,3,4,5-tetrathienylthiophene (X-5T) and 2,5-dithienyl-3,4-di ((2,2') bithiophene-5yl) thiophene (X-7T), were prepared. The thermal behaviour and morphologies of vacuum-deposited X-5T and X-7T films were examined by differential scanning calorimetry (DSC) and x-ray diffraction (XRD). The influence of morphologies of vacuum-evaporated X-5T and X-7T films on organic photovoltaic performance was hen investigated. It was found that vacuum-evaporated oligothiophene derivative films possessing crystalline morphology could be beneficial to improve organic photovoltaic performance of device by promoting forward interfacial electron transfer and transport.

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Solid State Phenomena (Volumes 181-182)

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320-323

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https://doi.org/10.4028/www.scientific.net/SSP.181-182.320

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November 2011

Authors:

Xue Quan Zhao, Li Guan, Yi Ping Zhong, Ping Liu, Wen Ji Deng

Keywords:

Morpholoy, Oligothiophene Derivative, Photovoltaic Performance

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