The environmentally friendly color CIGARETTES thin movie solar batteries established by ETRI scientists. Credit: Electronics and Telecommunications Research Institute (ETRI)
Research on solar batteries to protect renewable resource sources are continuous all over the world. The Electronics and Telecommunications Research Institute (ETRI) in South Korea prospered in establishing environmentally friendly color Cu(In,Ga)Se2 (CIGARETTES) thin-film solar batteries.
CIGS thin-film solar batteries are utilized to transform sunshine into electrical energy and are made by finishing several thin movies on a glass substrate. They have a fairly greater absorption coefficient amongst non-silicon based cells, leading to high conversion performance and long stability. Also, they need less basic materials compared to silicon-based cells; thus less procedure and product expenses.
One disadvantage has actually been the problem in commercialization as they utilize the buffer layer which includes harmful heavy metal, cadmium. Thus, the ETRI group changed the cadmium sulfide (CdS) buffer layer with zinc (Zn) based products — which is not hazardous — and handled to accomplish around 18% conversion performance; therefore getting rid of the challenge to commercialization.
Likewise, the accessibility of more than 7 colors consisting of purple, green, and blue — without the requirement for extra procedure or expense — indicates one action more detailed to full-on commercialization. Moreover, the scientists prospered in recognizing a brand-new analysis technique utilizing photo-pumping terahertz spectroscopy and a system for enhancing the conversion performance of solar batteries with Zn-based buffer layers.
The solar batteries are just 3? thick and can be covered on a versatile substrate in addition to a glass substrate. This indicates that they might be bent or folded, broadening applications as a next-generation environmentally friendly energy source.
“This technology will contribute to the solar power system development through the production of high value-added color photovoltaic modules,” stated Yong-Duck Chung, the ETRI principal scientist.
The quality of the research study was shown by its publication in ‘Nano Energy’ and ‘Progress in Photovoltaics: Research and Applications’ as the cover short article, worldwide well-regarded worldwide journals in the energy sector.
Reference: “Ultrafast wavelength-dependent provider characteristics associated with metastable problems in Cu(In,Ga)Se2 solar batteries with chemically transferred Zn(O,S) buffer layer” by Woo-Jung Lee, Dae-Hyung Cho, Jung Min Bae, Myeong Eon Kim, Jaehun Park and Yong-Duck Chung, 13 May 2020, Nano Energy.
DOI: 10.1016/j.nanoen.2020.104855
ETRI is a non-profit government-funded research study institute. Since its structure in 1976, ETRI, a worldwide ICT research study institute, has actually been making its enormous effort to supply Korea an amazing development in the field of ICT market. ETRI provides Korea as one of the leading ICT countries in the World, by unceasingly establishing world’s very first and finest innovations.
