Polarized Thin Layer Deposited Electrochemically on Aluminum-Doped Zinc Oxide as a Cathode Interlayer for Highly Efficient Organic Electronics.
Herein, we demonstrated a polarized thin film (PBzP2C4) electrochemically deposited from phosphonate and a carbazole-difunctionalized conjugated molecule as an aluminum-doped zinc oxide (AZO) modifier for high-performance inverted organic solar cells (OSCs)/polymer light-emitting diodes (PLEDs). The PBzP2C4 film showed a controllable thickness and fully covered the surface of AZO, resulting in a smooth and uniform electrode. PBzP2C4 modification reduced the WFof AZO and highly improved the electron extraction/injection in inverted OSCs/PLEDs. As a result, a maximum power conversion efficiency of 10.35% was achieved for inverted OSCs with PTB7-Th:PC71BM as the active layer, and a maximum luminous efficiency of 21.4 cd A-1was obtained for inverted PLEDs based on P-PPV.
State Key Laboratory of Supramolecular Structure and Materials, Jilin University , Changchun 130012, P. R. China.
Rong
R
Wang
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, P. R. China.
Li
L
Nian
State Key Laboratory of Supramolecular Structure and Materials, Jilin University , Changchun 130012, P. R. China.
Liang
L
Yao
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, P. R. China.
Linlin
L
Liu
Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, P. R. China.
Zengqi
Z
Xie
State Key Laboratory of Supramolecular Structure and Materials, Jilin University , Changchun 130012, P. R. China.|Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology , Guangzhou 510640, P. R. China.
Yuguang
Y
Ma
cathode interlayer; electrochemical deposition; high performance; organic solar cells; polymer light-emitting diodes