According to the Yonhap news agency reported on Sept. 22, Professor Kim Tae-Ho, a professor of chemical engineering at Pohang University of Science and Technology, and Li Junyu, an integrated course team, used food additives made from walnut flavoring to produce an environmentally friendly and highly efficient conductive substance that could be used Production of perovskite solar cells. The results have been published on the online edition of the Journal of the American Chemical Society, the authoritative journal of chemistry.
It is reported that perovskite material thinner than silicon, production costs are also cheaper, so much attention in the solar cell industry. Reported that the perovskite solar cells in the sunlight received, it will produce electronic and electron holes, then you need an efficient medium to transmit them to the electrode. Prior to this, the conductive medium of perovskite solar cells has been using toxic chlorobenzene.
The research team successfully developed a more environmentally friendly conductive material using walnut flavor food additives, can replace chlorobenzene to make perovskite solar cells. Li Junyu said that this material can improve the polymer efficiency by 18% without changing the optoelectronic properties, and this efficiency will not subside with time. This discovery is expected to contribute to the development of conductive polymer industry.
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