Polymer bulk heterojunction solar cells: Function and utility of inserting a hole transport and electron blocking layer into the device structure

The function and utility of inserting an in situ polymerizable triphenylamine-containing polyperfluorocyclobutane (TPA–PFCB) as a hole transport and electron blocking layer into the structure of bulk heterojunction (BHJ) solar cells were demonstrated. The open-circuit voltage (Voc) and short-circuit current (Jsc) increase, leading to BHJ solar cells with improved power conversion efficiency.

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