efficient polymer solar cells with alcohol-soluble zirconium(iv) isopropoxide cathode buffer layer

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ID: 241155
2018
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Abstract
Interfacial materials are essential to the performance and stability of polymer solar cells (PSCs). Herein, solution-processed zirconium(IV) isopropoxide (Zr[OCH(CH3)2]4, ZrIPO) has been employed as an efficient cathode buffer layer between the Al cathode and photoactive layer. The ZrIPO buffer layer is prepared simply via spin-coating its isopropanol solution on the photoactive layer at room temperature without any post-treatment. When using ZrIPO/Al instead of the traditionally used Ca/Al cathode in PSCs, the short-circuit current density (Jsc) is significantly improved and the series resistance of the device is decreased. The power conversion efficiency (PCE) of the P3HT:PCBM-based device with ZrIPO buffer layer reaches 4.47% under the illumination of AM1.5G, 100 mW/cm2. A better performance with PCE of 8.07% is achieved when a low bandgap polymer PBDTBDD is selected as donor material. The results indicate that ZrIPO is a promising electron collection material as a substitute of the traditional low-work-function cathode for high performance PSCs.
Reference Key
luo2018energiesefficient Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Zhen Luo, Bo Yang, Yiming Bai, Tasawar Hayat, Ahmed Alsaedi, Zhan'ao Tan
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Journal acs combinatorial science
Year 2018
DOI
10.3390/en11020328
URL
http://www.mdpi.com/1996-1073/11/2/328
Keywords
polymer solar cells zirconium(iv) isopropoxidetechnology

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