Citation: Huang Xiao-Juan, Yao Xiang, Xu Wen-Zhan, Wang Kai, Huang Fei, Gong Xiong, Cao Yong. Inverted polymer solar cells with Zn₂SnO₄ nanoparticles as the electron extraction layer[J]. Chinese Chemical Letters, ;2017, 28(8): 1755-1759. doi: 10.1016/j.cclet.2017.04.011 shu

Inverted polymer solar cells with Zn₂SnO₄ nanoparticles as the electron extraction layer

Huang Xiao-Juan ^a,1 ,
Yao Xiang ^a,1 ,
Xu Wen-Zhan ^a ,
Wang Kai ^b ,
Huang Fei ^a ,
Gong Xiong ^a,b,, ,
Cao Yong ^a

a.
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
b.
Department of Polymer Engineering, College of Polymer Science and Polymer Engineering, The University of Akron, Akron, OH 44325, USA

Corresponding author: Gong Xiong, xgong@uakron.edu

Received Date: 30 January 2017
Revised Date: 25 February 2017
Accepted Date: 9 April 2017
Available Online: 17 August 2017

Figures(6)

In this study, we report narrow-size distribution Zn₂SnO₄ (ZSO) nanoparticles, which are produced by low-temperature solution-processed used as the electron extraction layer (EEL) in the inverted polymer solar cells (i-PSCs). Moreover, poly[(9, 9-bis(3'-(N, N-dimethylamino)propyl)-2, 7-fluorene)-alt-2, 7-(9, 9-dioctylfluorene)] (PFN) is used to modify the surface properties of ZSO thin film. By using the ZSO NPs/PFN as the EEL, the i-PSCs fabricated by poly[4, 8-bis(2-ethylhexyloxyl)benzo[1, 2-b:4, 5-b'] dithio-phene-2, 6-diyl-altethylhexyl-3-fluorothithieno [3, 4-b]thiophene-2-carboxylate-4, 6-diyl] (PTB7) blended with (6, 6)-phenyl-C₇₁-butyric acid methylester (PC₇₁BM) bulk heterojunction (BHJ) composite, exhibits a power conversion efficiency (PCE) of 8.44%, which is nearly 10% enhancement as compared with that of 7.75% observed from the i-PSCs by PTB7:PC₇₁BM BHJ composite using the ZnO/PFN EEL. The enhanced PCE is originated from improved interfacial contact between the EEL with BHJ active layer and good energy level alignment between BHJ active layer and the EEL. Our results indicate that we provide a simple way to boost efficiency of i-PSCs.
- Electron transport layer,
- Zn₂SnO₄ nanoparticles,
- Bulk heterojunction,
- Power conversion efficiency,
- Inverted polymer solar cells
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沈阳化工大学材料科学与工程学院沈阳 110142

Inverted polymer solar cells with Zn2SnO4 nanoparticles as the electron extraction layer

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Inverted polymer solar cells with Zn₂SnO₄ nanoparticles as the electron extraction layer