Oxidative Chemical Vapor Deposition of Neutral Hole Transporting Polymer for Enhanced Solar Cell Efficiency and Lifetime.

Jo, Won Jun; Nelson, Justin T; Chang, Sehoon; Bulović, Vladimir; Gradečak, Silvija; Strano, Michael S; Gleason, Karen K · Adv Mater · 2016

basic_science · Level V

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Abstract

The concept of a neutral hole-transporting polymer is realized for the first time, by integrating patterned Cl(-) -doped poly(3,4-dimethoxythiophene) thin films into organic solar cells through a vacuum-based polymer vapor printing technique. Due to this novel polymer's neutrality, high transparency, good conductivity, and appropriate energy levels, the solar-cell efficiency and lifetime are significantly enhanced.