Interdigitated Horizontal Electrodes for Organic Solar Cells | Zendy

Young-Jun You | Zendy; Do Young Kim | Zendy; Sang-Chul Shin | Zendy; Jae Won Shim | Zendy

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Interdigitated Horizontal Electrodes for Organic Solar Cells

Author(s) -

Young-Jun You,

Do Young Kim,

Sang-Chul Shin,

Jae Won Shim

Publication year - 2018

Publication title -

ieee access

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.587

H-Index - 127

ISSN - 2169-3536

DOI - 10.1109/access.2018.2877844

Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation

We first introduce a new electrode structure for organic solar cells (OSCs), the so-called interdigitated horizontal electrode (IHE), in which an electron-collecting electrode and a hole-collecting electrode are horizontally separated. In the IHE, the directions of the incident light and the charge collection are perpendicular to each other. Therefore, the thickness of the photoactive layer is no longer limited by the poor electrical mobility of the carriers in the organic-based photoactive layer. An analysis of the electrical, optical, and electrochemical properties of the IHE is presented. For poly(3-hexylthiophene) (P3HT):[6,6]-phenyl C₆₀ butyric acid methyl ester (PC₆₀BM)-based IHE OSCs, a proof-of-principle demonstration is performed of their feasibility as electrodes. Such OSCs yielded a power-conversion efficiency of 1.2 ± 0.1%, with a short-circuit current density (JSC) of 13.6 ± 0.2 mA/cm², which is larger than the JSC of 8.5 ± 0.2 mA/cm² of the reference OSCs with their conventional stacked structure.

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