화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Macromolecular Research, Vol.30, No.2, 146-151, February, 2022
DOI10.1007/s13233-022-0011-2  Export Citation
Effect of the Side Chain Functionality of the Conjugated Polyelectrolytes as a Cathode Interlayer Material on the Photovoltaic Performances
Sabrina Aufar Salma, and Joo Hyun Kim†
  • Department of Polymer Engineering, Pukyong National University, Busan, 48513, Korea
E-mail:
The quaternized conjugated polymer based on poly[(9,9-bis(3′-(N,N-dimethylamino)propyl)-2,7-fluorene)-alt-2,7-(9,9-dihexylfluorene)] (PFN) as cathode interlayer material (CIM) in a polymer solar cell was systematically investigated. The interlayer consists of alternating dihexyl fluorene and dimethyl aminopropyl fluorene backbone. The corresponding quaternized conjugated polyelectrolytes, named PFN salt and PFN-OH salt, were synthesized by introducing quaternized agents, such as bromoethane or bromoethanol, as side chains onto the PFN precursor polymer. Different quaternized agents give the different inducing effects of an interfacial dipole. The structure of inverted polymer solar cells (iPSCs) is ZnO/interlayer/PTB7-Th:PC71BM/MoO3/Ag. The enhancement in the efficiency of the iPSCs was accomplished by introducing a PFN, PFN salt, and PFN-OH salt as the CIM. Modification of side-chain functionality with bromoethanol shows better performances than that with bromoethane as an interlayer.
Keywords:conjugated polyelectrolyte;cathode interlayer material;photovoltaic
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