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Organic Semiconductor Interfaces and Their Effects in Organic Solar Cells
  • +2
  • Chuanfei Wang,
  • Qi Zeng,
  • Xianjie Liu,
  • Falman Mats,
  • Qinye Bao
Chuanfei Wang
Ocean University of China
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Qi Zeng
Shanghai University of Engineering Science
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Xianjie Liu
Linköping University
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Falman Mats
Linköping University
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Qinye Bao
East China Normal University

Corresponding Author:qybao@clpm.ecnu.edu.cn

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Abstract

Energy levels and energy level alignment at interfaces play a decisive role in designing efficient and stable organic solar cells (OSCs). In this review two usually used technologies in organic photovoltaic communities for measuring energy levels of organic semiconductors, photoelectron spectroscopy and electrochemical methods, are introduced, and the relationships between the values obtained from the corresponding techniques are compared. The energy level and energy level alignment across the interfaces involved in solution processed organic photovoltaics are described, and the corresponding integer charge transfer model for predicting and explaining energy level alignment are presented. The effects of the interface properties in designing efficient binary and ternary OSCs were discussed. The effects of environmental factors mainly including water vapor, oxygen gas and thermal annealing on energy levels and energy level alignment involved in photoactive layers, and the subsequent effects on the corresponding OSC properties are given.
14 Jun 2023Reviewer(s) Assigned
25 Jun 2023Review(s) Completed, Editorial Evaluation Pending
29 Jun 2023Editorial Decision: Revise Minor
13 Jul 20231st Revision Received
13 Jul 2023Submission Checks Completed
13 Jul 2023Assigned to Editor
13 Jul 2023Review(s) Completed, Editorial Evaluation Pending
13 Jul 2023Reviewer(s) Assigned
01 Aug 2023Editorial Decision: Accept