Data related to the PC71BM loading and it's impact on nanostructuring for blend of PBDTTT-EFT:PC71BM bulk heterojunction solar cell

Abstract

The data included in this article is based on additional supporting information presented in our recent publication Komilian et al. [1]. The role of acceptor material (PC71BM) in restructuring copolymer PBDTTT-EFT from its relaxed pristine structure to interfaces suitable for exciton dissociation is discussed. The analysis of data indicates that the impact of acceptor material on nanostructuring initiates concurrent processes some of which supports and some impedes charge extractions. Therefore, this manuscript is designed to identify these processes and give and account of their impact on power conversion efficiency.

Techniques to Facilitate 3D Analysis of Self‐Organized Nanostructure Mechanism in Polymer/Fullerene Bulk Heterojunction Device

“…[22][23][24] Specifically, as these materials are solution processed, the domain size, crystallinity, and donor/ acceptor interfaces are much more dependent on the fabrication process as well as its composition ratios. [25][26][27][28][29][30] Furthermore, to date very little information is available in relation to the nanostructure mechanisms of the polymer/fullerene in bulk heterojunction devices in particular experimental techniques to reveal polymer orientation in relation to the fullerene presence. Understanding this mechanism could reveal the role of acceptor material in nano structure formation in the blended film structures, leading to the appropriate selection of a material, its loading, concentration, and ultimately improved device efficiency.…”