To ensure effective collection of photo-generated minority electrons in a CuInS2 thin film solar cell, a three-dimensional nanostructure was constructed by electrospinning a copper-indium solution precursor onto a molybdenum substrate. The electrospun nanofibers adhered onto the underlying layers before undergoing sulfurization at 500°C to produce a three-dimensional web-like fibrous CuInS2 film. This fibrous film was characterized by scanning electron microscopy, X-ray diffraction, and Auger electron spectroscopy, thereby characterizing the 3D fibrous nanostructure of the CuInS2 film. This 3D structure could lead to next-generation solar cells optimized for maximal charge separation to enhance photovoltaic efficiency of solution-processed thin film solar cells.
Bibliographical noteFunding Information:
This work was supported by the Human Resources Development program (No. 20124030200120) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy and by NRF-2013R1A2A2A05005589 . The authors extend their appreciation to the Deanship of Scientific Research at King Saud University for its funding this Prolific Research group ( PRG-1436-03 ).
© 2015 Elsevier B.V. All rights reserved.
Copyright 2020 Elsevier B.V., All rights reserved.
- 3D nanostructure
ASJC Scopus subject areas
- Condensed Matter Physics
- Physics and Astronomy(all)
- Surfaces and Interfaces
- Surfaces, Coatings and Films