A ZnO:POMs composite electron transport layer for efficient PTB7:PC71BM polymer solar cells

Suitable modification to the ZnO cathode interface of polymer solar cells can effectively enhance the efficiency, stability, and electron extraction capability of the device. With the use of vacant Keggin type PW polyoxometalates (POMs), polymer solar cells with ZnO:POM composite electron transport...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2022-12, Vol.33 (36), p.27158-27168
Main Authors: Guo, Hao, Hao, Changshi, Dai, Chunai, An, Xiaoyan, Yan, Luting
Format: Article
Language:English
Subjects:
Acids
Annealing
Characterization and Evaluation of Materials
Charge transfer
Chemistry and Materials Science
Control equipment
Efficiency
Electron transport
Energy conversion efficiency
Excitons
Glass substrates
Interface stability
Materials Science
Optical and Electronic Materials
Photovoltaic cells
Polymers
Polyoxometallates
Potassium
Solar cells
Zinc oxide
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Suitable modification to the ZnO cathode interface of polymer solar cells can effectively enhance the efficiency, stability, and electron extraction capability of the device. With the use of vacant Keggin type PW polyoxometalates (POMs), polymer solar cells with ZnO:POM composite electron transport layer (ETL) were prepared. Compared with the single ZnO ETL, the addition of POMs mainly improved the interface contact and reduced the charge transfer barrier, which was conducive to exciton dissociation and charge collection. When the doping concentration of POMs was 0.1 mg/mL, the power conversion efficiency of the device with the structure of ITO/ZnO-PW11-0.1/PTB7: PC 71 BM/MoO 3 /Al could reach 8.66%, which was 18.5% higher than that of the control device (7.31%).
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-022-09378-0