Scientists have developed a hybrid production method combining metal mesh and a metal-oxide layer over a glass substrate which they say brings down production cost by 80% compared to the tin-doped, indium oxide-based technology currently in use.
France’s Liten organization said it raised efficiency more than 20% with improved thickness homogeneity of the perovskite and optimized composition of the n-type interfacial layer. The previous record of 16.9% was attained by the same research group early last year.
Italian researchers have added graphene to the titanium dioxide electron selective layer used in a perovskite cell to increase chemical stability. The two-terminal cell was made by stacking two sub-cells which were fabricated and optimized separately.
Spanish researchers have unveiled a monolithic nano-structured perovskite silicon tandem device they claim can reduce optical losses by more than a third compared to planar perovskite cells of the same kind.
Researchers at the Massachusetts Institute of Technology have developed a transparent coating they successfully incorporated into a perovskite solar cell, increasing efficiency and stability. The group says with further improvements the material could be used as a simpler, less expensive alternative to widely used indium tin oxide as a transparent conductive material for a range of applications.
A research team led by the University of Liverpool has developed a transparent conductive oxide material to replace tin with molybdenum. The results demonstrated better performance and potentially lower material costs than the transparent conducting layers used in today’s commercial solar cells.
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