Interface Design Principles for High-Performance Organic Semiconductor Devices

Wanyi Nie; Gautam Gupta; Brian K Crone; Feilong Liu; Darryl L Smith; P Paul Ruden; Cheng-Yu Kuo; Hsinhan Tsai; Hsing-Lin Wang; Hao Li; Sergei Tretiak; Aditya D Mohite

doi:10.1002/advs.201500024

Interface Design Principles for High-Performance Organic Semiconductor Devices

Adv Sci (Weinh). 2015 Mar 23;2(6):1500024. doi: 10.1002/advs.201500024. eCollection 2015 Jun.

Authors

Affiliations

¹ Material Synthesis and Integrated Devices MPA-11, Los Alamos National Laboratory Los Alamos NM 87545 USA.
² Department of Electrical and Computer Engineering University of Minnesota Minneapolis MN 55455 USA.
³ Physics of Condensed Matter and Complex Systems Division Los Alamos National Laboratory Los Alamos NM 87545 USA.
⁴ Physical Chemistry and Applied Spectroscopy Chemistry Division Los Alamos National Laboratory Los Alamos NM 87545 USA.

Abstract

Precise manipulation of organic donor-acceptor interfaces using spacer layers is demonstrated to suppress interface recombination in an organic photo-voltaic device. These strategies lead to a dramatic improvement in a model bilayer system and bulk-heterojunction system. These interface strategies are applicable to a wide variety of donor-acceptor systems, making them both fundamentally interesting and technologically relevant for achieving high efficiency organic electronic devices.

Keywords: charge transfer state; interface; organic solar cell; recombination.