Jump to main content
Jump to site search


Effect of the Graphene Integration Process in the Performance of Graphene-based Schottky Junction Solar Cells

Abstract

With the rise of graphene, its applications as the active component in various types of solar cells, such as transparent conductors, additives, or interface charge transport layers, have been intensively investigated. Among them, graphene-based Schottky junction solar cells have been rapidly developed due to their relatively simple device structures compared to conventional p-n junction type solar cells. Through various modifications such as chemical doping, antireflection coating, and interfacial oxide layer control, power conversion efficiency over 15% was successfully reported. However, graphene-based Schottky junction type solar cells often suffer from s-shaped current density–voltage characteristics, which leads to the inevitable performance degradation, particularly for the fill factor. In this work, we investigate the origin of such aforementioned behaviors and propose a facile approach to suppress the s-shape character in the operation of graphene-based Schottky junction solar cells. Through the careful modulation of graphene integration process, the interfacial charge recombination seemed to be significantly suppressed leading to the notably improved device performance (from 0.8% to 12.5%). Our findings shall provide valuable insights on the operating principle of graphene-based Schottky junction solar cells, which can play an important role as one of the primary suppliers for the next-generation renewable clean energy source.

Back to tab navigation

Supplementary files

Publication details

The article was received on 23 Jun 2017, accepted on 04 Aug 2017 and first published on 04 Aug 2017


Article type: Paper
DOI: 10.1039/C7TA05481E
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
  •   Request permissions

    Effect of the Graphene Integration Process in the Performance of Graphene-based Schottky Junction Solar Cells

    Y. Choi, J. Lee, J. Seo, S. Jung, U. Kim and H. Park, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA05481E

Search articles by author

Spotlight

Advertisements