Performance improvement of TiO2/P3HT solar cells using CuPc as a sensitizer

Shen, Liang, Zhu, Guohui, Guo, Wenbin, Tao, Chen, Zhang, Xindong, Liu, Caixia, Chen, Weiyou, Ruan, Shengping and Zhong, Zhicheng (2008) Performance improvement of TiO2/P3HT solar cells using CuPc as a sensitizer. Applied Physics Letters, 92 7: 073307-1-073307-3. doi:10.1063/1.2884270

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Author Shen, Liang
Zhu, Guohui
Guo, Wenbin
Tao, Chen
Zhang, Xindong
Liu, Caixia
Chen, Weiyou
Ruan, Shengping
Zhong, Zhicheng
Title Performance improvement of TiO2/P3HT solar cells using CuPc as a sensitizer
Formatted title
Performance improvement of TiO2/P3HT solar cells using CuPc as a sensitizer
Journal name Applied Physics Letters   Check publisher's open access policy
ISSN 0003-6951
1520-8842
1077-3118
1941-420X
Publication date 2008-02-21
Sub-type Article (original research)
DOI 10.1063/1.2884270
Open Access Status File (Author Post-print)
Volume 92
Issue 7
Start page 073307-1
End page 073307-3
Total pages 3
Place of publication College Park, MD, United States
Publisher American Institute of Physics
Language eng
Formatted abstract
In this work, a new type of TiO2/polymer solar cells was fabricated. The device structure was indium tin oxide titanium dioxide TiOM 2/ copper phthalocyanine (CuPc)/poly(3-hexylthiophene) (P3HT)/Au. In this architecture, TiO2 was designed to act as electron acceptor, and P3HT was electron donor. CuPc was used as a sensitizer to enhance photon absorption. The results show that by inserting CuPc between P3HT and TiO 2 layers, the light absorption, excitons separation, and photocurrent under illumination are dramatically improved. The device has a short current density (JSC) of 1.15 mA/cm2 and power conversion efficiency (η) of 0.28% without CuPc layer. However, JSC and η turn to be 2.22 mA/cm2 and 0.66%, respectively, with a 20 nm thickness CuPc layer under air mass 1.5 global (AM1.5G) illumination with the intensity of 100 mW/cm2. The performance improvement can be attributed to the higher carrier mobility and the stronger photon absorption using CuPc as a sensitizing layer.
Q-Index Code CX
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Chemistry and Molecular Biosciences
 
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Created: Wed, 21 Sep 2011, 01:10:06 EST by Chen Tao on behalf of School of Chemistry & Molecular Biosciences