Printable Hole Transport Layer for 1.0 cm2 Organic Solar Cells
Haitao Xu1,2, Helong Zou1, Dan Zhou1
1College of Materials Science and Engineering, Nanchang Hangkong University, 696 Fenghe Avenue, Nanchang 330063, China.
Abstract:
Currently, most of the hole transport layers (HTLs) of organic solar cells (OSCs) are unable to meet the requirements of printing preparation, which imposes restrictions on the commercial process of the OSCs severely. Here, we report a printable HTL, PCPDTK0.50H0.50-TT. The PM6:Y6:PC71BM device with PCPDTK0.50H0.50-TT as an HTL exhibits a power conversion efficiency (PCE) of 16.3% (with an area of 0.04 cm2). More importantly, the PCE of the device is up to 10.2%, with an area of 1.0 cm2 prepared by the wire-bar coating PCPDTK0.50H0.50-TT HTL, which is in favor of the printing fabrication of the OSCs. In view of the superiorities of the large-area printing and the impressive PCE, we believe that PCPDTK0.50H0.50-TT should be a potential HTL for industrial production of OSCs.
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