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CuInS(2) solar cells by air-stable ink rolling
Benjamin D Weil1, Stephen T Connor, Yi Cui
1Department of Materials Science and Engineering and Department of Chemistry, Stanford University, Stanford, California 94305, USA.
Journal of the American Chemical Society
|April 29, 2010
Summary
We developed an air-stable ink rolling (AIR) process for low-cost solar cell fabrication. This scalable method produces high-quality copper indium disulfide absorber layers for efficient photovoltaic devices.
Area of Science:
- Materials Science
- Renewable Energy
- Nanotechnology
Background:
- Solution-based deposition offers a cost-effective and high-throughput approach for photovoltaic device manufacturing.
- Developing stable inks and scalable processes is crucial for advancing printable electronics.
Purpose of the Study:
- To establish a scalable deposition methodology for photovoltaic devices.
- To synthesize an air-stable, vulcanized ink from commercial precursors.
- To fabricate and characterize solar cells using the developed process.
Main Methods:
- Developed an air-stable ink rolling (AIR) process.
- Synthesized a vulcanized ink from commercially available precursors.
- Fabricated solar cells with CuInS(2) absorber layers.
Main Results:
- Achieved flat, contaminant-free, large-grained CuInS(2) absorber layers.
- Solar cells exhibited J(sc) = 18.49 mA/cm(2), V(oc) = 320 mV, FF = 0.37, and eta = 2.15%.
- The AIR process yields film quality comparable to vacuum deposition.
Conclusions:
- The AIR process is a highly scalable and versatile method for producing high-quality thin films.
- This technique is suitable for fabricating efficient solar cells and potentially other electronic devices.
- The developed air-stable ink facilitates low-cost, high-throughput fabrication of photovoltaic devices.
