Researchers from Korea Institute of Science and Technology Report Details of New Studies and Findings in the Area of Applied Materials & Interfaces
By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Applied Materials & Interfaces have been published. According to news reporting originating in Seoul, South Korea, by VerticalNews journalists, research stated, "Cu2ZnSnS4 (CZTS) is a very promising semiconductor material when used for the absorber layer of thin film solar cells because it consists of only abundant and inexpensive elements. In addition, a low-cost solution process is applicable to the preparation of CZTS absorber films, which reduces the cost when this film is used for the production of thin film solar cells."
The news reporters obtained a quote from the research from the Korea Institute of Science and Technology, "To fabricate solution-processed CZTS thin film using an easily scalable and relatively safe method, we suggest a precursor solution paste coating method with a two-step heating process (oxidation and sulfurization). The synthesized CZTS film was observed to be composed of grains of a size of ~300 nm, showing an overall densely packed morphology with some pores and voids. A solar cell device with this film as an absorber layer showed the highest efficiency of 3.02% with an open circuit voltage of 556 mV, a short current density of 13.5 mA/cm(2), and a fill factor of 40.3%."
According to the news reporters, the research concluded: "We also noted the existence of Cd moieties and an inhomogeneous Zn distribution in the CZTS film, which may have been triggered by the presence of pores and voids in the CZTS film."
For more information on this research see: Synthesis of Cu2ZnSnS4 thin films by a precursor solution paste for thin film solar cell applications. Acs Applied Materials & Interfaces, 2013;5(10):4162-5. (American Chemical Society - www.acs.org; Acs Applied Materials & Interfaces - www.pubs.acs.org/journal/aamick)
Our news correspondents report that additional information may be obtained by contacting J.W. Cho, Clean Energy Research Center, Korea Institute of Science and Technology, Seongbuk-gu, Seoul 136-791, South Korea. Additional authors for this research include A. Ismail, S.J. Park, W. Kim, S. Yoon and B.K Min.
Keywords for this news article include: Asia, Seoul, South Korea, Applied Materials & Interfaces.
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