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Journal of Shanghai University >

2018 , Vol. 24 >Issue 2: 225 - 235

DOI: https://doi.org/10.12066/j.issn.1007-2861.1804

Research Articles

PMA:MoO$_3$ nanocomposite hole transport layer for organic solar cells

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  • 1. College of Sciences, Shanghai University, Shanghai 200444, China
    2. Printable Electronics Research Center, Suzhou Institute of Nano-Tech and Nano-Bionics,Chinese Academy of Sciences, Suzhou 215123, Jiangsu, China
    3. Collaborative Innovation Center of Suzhou Nano Science and Technology, Institute of Functional Nano and Soft Materials, Soochow University, Suzhou 215123, Jiangsu, China

Received date: 2016-05-23

  Online published: 2018-05-07

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Abstract

To develop PEDOT:PSS (poly (3,4-ethylendioxythiophene):poly (sodium-p-styrenesulfonate)—hole transporting materials in polymer solar cells, a solution-processable nanocomposite ink based on MoO$_3$ nano-particles and phosphomolybdic acid (PMA) is reported. The PMA:MoO$_3$ composite ink can be easily prepared by simply mixing PMA and MoO$_3$ solutions in different weight ratios. This PMA:MoO$_3$ composite ink shows good wettability on polymer surface. A smooth and homogeneous thin film can be easily deposited on polymer surface via a spin-coating process without any surface treatment. Both open circuit voltage ($V_ {OC}$) and fill factor (FF) of the PMA:MoO$_3$-based P3HT:PC$_{61}$BM cells are higher than that based on PMA or MoO$_3$ cells. Influence of the blend ratio between PMA and MoO3 on solar cell performance was carried out, and the optimized best blend ratio was found to be 1:2 for PMA:MoO$_3$, with which a highest device performance of 3.71% was achieved. The current work demonstrates that nanocomposite of metal oxide and polyoxometalate (POM) can serve as an excellent electrode buffer layer for solution-processed organic electronics.

Key words： organic solar cell; hole transport layer (HTL); nano metal oxide; polyoxometalate (POM); solution processibility

Cite this article

WANG Yiling, YI Jinduo, LUO Qun, XIE Zhongming, LI Yanqing, MA Changqi, LUO Liqiang . PMA:MoO$_3$ nanocomposite hole transport layer for organic solar cells[J]. Journal of Shanghai University, 2018 , 24(2) : 225 -235 . DOI: 10.12066/j.issn.1007-2861.1804

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