Journal
NEW JOURNAL OF CHEMISTRY
Volume 45, Issue 34, Pages 15118-15130Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1nj01605a
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Funding
- National Natural Science Foundation of China [51673139, 91633301]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials
- Collaborative Innovation Center of Suzhou Nano Science and Technology
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Zwitterions, composed of fatty acids, have attracted continuous attention in organic/perovskite solar cells due to their unique chemical structures and electric charges. They are widely used as interfacial materials and dopants, with recent focus on their application in passivating defects and stabilizing perovskite films in OSCs and PSCs. Research has been focused on their functions as interlayers, the regulation of perovskite films, and different applications such as ultrathin zwitterionic materials and zwitterionic dopants.
Zwitterions, due to their unique chemical structures and electric charges, have attracted continuous attention in organic/perovskite solar cells (OSCs/PSCs). They are widely used as interfacial materials in both OSCs and PSCs, and have been recently exploited as excellent dopants to passivate the defects and stabilize the black phase of perovskite films. This review summarizes the recent progress in zwitterionic materials toward their application in OSCs and PSCs, through the concepts of interfacial dipoles and their functions as interlayers, and the discussion on the regulation of perovskite films. In terms of interfacial modification, ultrathin zwitterionic materials, thickness-insensitive zwitterionic materials applied on metals and zwitterionic materials applied on metal oxides are listed. Based on their functions, zwitterionic dopants are described in terms of passivating defects and stabilizing phase.
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