Panchromatic Sequentially Cast Ternary Polymer Solar Cells

Masoud Ghasemi; Long Ye; Qianqian Zhang; Liang Yan; Joo-Hyun Kim; Omar Awartani; Wei You; Abay Gadisa; Harald Ade

doi:10.1002/adma.201604603

Panchromatic Sequentially Cast Ternary Polymer Solar Cells

Adv Mater. 2017 Jan;29(4). doi: 10.1002/adma.201604603. Epub 2016 Nov 29.

Authors

Masoud Ghasemi¹, Long Ye¹, Qianqian Zhang², Liang Yan², Joo-Hyun Kim¹, Omar Awartani¹, Wei You², Abay Gadisa¹, Harald Ade¹

Affiliations

¹ Department of Physics and ORaCEL, North Carolina State University, Raleigh, NC, 27695, USA.
² Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.

PMID: 27897339
DOI: 10.1002/adma.201604603

Abstract

A sequential-casting ternary method is developed to create stratified bulk heterojunction (BHJ) solar cells, in which the two BHJ layers are spin cast sequentially without the need of adopting a middle electrode and orthogonal solvents. This method is found to be particularly useful for polymers that form a mechanically alloyed morphology due to the high degree of miscibility in the blend.

Keywords: mechanical alloys; miscibility; polymer solar cells; sequential casting; ternary blends.