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  4. Charge transport properties of low temperature solution processable poly(3-hexylthiophene)/surfaee modified TiO2 bulk heterojunction systems
 
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Charge transport properties of low temperature solution processable poly(3-hexylthiophene)/surfaee modified TiO2 bulk heterojunction systems

Journal
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
7052
ISBN
9780819472724
Date Issued
2008
Author(s)
Hsu F.-C.
Huang Y.-C.
Liao Y.-C.
Hsu J.-H.
Yen W.-C.
Chen C.-W.
WEI-FANG SU  
CHUN-WEI CHEN  
DOI
10.1117/12.794757
URI
https://www.scopus.com/inward/record.uri?eid=2-s2.0-57649097835&doi=10.1117%2f12.794757&partnerID=40&md5=9d6c837d05a9376d4ecaf39cb4edb8a8
https://scholars.lib.ntu.edu.tw/handle/123456789/432861
Abstract
The solution processable poly(3-hexylthiophene)(P3HT)/TiO 2-nanorod hybrid material for solar cells has been successfully demonstrated. A critical issue for using hybrid heterojunction concept is the interface properties which affect the exciton separation efficiency and bi-carrier transport. To improve the interface properties, we replace the insulating surfactant on TiO2 nanorod surface with a more conductive oligomer, carboxylate terminated 3-hexylthiophene (P3HT-COOH). The enhancement of exciton separation efficiency due to better organic-inorganic interfacial compatibility can be obtained. The electron mobility for transporting in the TiO2 network is improved. A power conversion efficiency has been increased 3 times by using this new hybrid material without optimization as compared with the hybrid without P3HT-COOH modification.
SDGs

[SDGs]SDG7

Other Subjects
Bulk heterojunction; Charge transport; Conductive atomic force microscopy; Hybrid solar cell; Solution process; Surface modification; Atomic force microscopy; Carboxylation; Conversion efficiency; Electron mobility; Excitons; Hybrid materials; Nanorods; Photovoltaic cells; Polymers; Solar cells; Solar energy; Surface active agents; Surface treatment; Transport properties; Heterojunctions
Type
conference paper

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