A Thieno[3,2-b]benzothiophene Isoindigo Building Block for Additive- and Annealing-Free High-Performance Polymer Solar Cells
Ashraf, Raja Shahid
Nielsen, Christian B.
Niazi, Muhammad Rizwan
Yousaf, Syeda Amber
Durrant, James R.
KAUST DepartmentPhysical Sciences and Engineering (PSE) Division
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AbstractA novel photoactive polymer with two different molecular weights is reported, based on a new building block: thieno[3,2-b]benzothiophene isoindigo. Due to the improved crystallinity, optimal blend morphology, and higher charge mobility, solar-cell devices of the high-molecular-weight polymer exhibit a superior performance, affording efficiencies of 9.1% without the need for additives, annealing, or additional extraction layers during device fabrication.
CitationA Thieno[3,2-b]benzothiophene Isoindigo Building Block for Additive- and Annealing-Free High-Performance Polymer Solar Cells 2015, 27 (32):4702 Advanced Materials
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