Improved performance of polymer/TiO2 nanorods bulk heterojunction photovoltaic devices by interface modification

Yun-Yue Lin; S. S. Lee; Tsung-Hung Chu; Wei-Fang Su; Chun-Wei Chen

doi:10.1117/12.792071

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3 September 2008 Improved performance of polymer/TiO₂ nanorods bulk heterojunction photovoltaic devices by interface modification

Yun-Yue Lin, S. S. Lee, Tsung-Hung Chu, Wei-Fang Su, Chun-Wei Chen

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Proceedings Volume 7052, Organic Photovoltaics IX; 70520S (2008) https://doi.org/10.1117/12.792071
Event: Photonic Devices + Applications, 2008, San Diego, California, United States

Abstract

In this article, the polymer photovoltaic devices based on the poly(3-hexylthiophene)/TiO₂ nanorods hybrid material is present. An enhancement in the device performance can be achieved by removing or replacing the insulating surfactant on the TiO₂ nanorods surface with a more conductive ligand, which can play the role to assist charge separation efficiency or also to prevent from back recombination, giving a large improvement in the short circuit current and fill factor. The relatively high power conversion efficiency of 2.2 % under simulated A.M. 1.5 illumination (100mW/cm²) can be achieved, providing a route for fabricating low-cost, environmentally friendly polymer photovoltaic devices by all-solution processes.

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Yun-Yue Lin, S. S. Lee, Tsung-Hung Chu, Wei-Fang Su, and Chun-Wei Chen "Improved performance of polymer/TiO₂ nanorods bulk heterojunction photovoltaic devices by interface modification", Proc. SPIE 7052, Organic Photovoltaics IX, 70520S (3 September 2008); https://doi.org/10.1117/12.792071

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