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Inverted perovskite solar cell achieves 24.8% efficiency via new additive

The additive consists of a molecule known as 4-guanidinobenzoic acid hydrochloride (GBAC), which is a raw material and intermediate commonly utilized in organic synthesis, pharmaceuticals, agrochemicals and dyestuff fields. The solar cell has a p–i–n structure and, thanks to the new additive, showed considerably reduced defect density on the perovskite film, which in turn results in reduced non-radiative recombinations. ....

City University Of Hong Kong , Japan Electrical Safety Environment Technology Laboratories , City University , Hong Kong , Japan Electrical Safety , Environment Technology Laboratories ,

CityU researchers develop an additive to effi

Perovskite solar cells (PVSCs) are a promising alternative to traditional silicon-based solar cells because of their high power-conversion efficiency and low cost. However, one of the major challenges in their development has been achieving long-term stability. Recently, a research team from City University of Hong Kong (CityU) made a breakthrough by developing an innovative multifunctional and non-volatile additive which can improve the efficiency and stability of perovskite solar cells by modulating perovskite film growth. This simple and effective strategy has great potential for facilitating the commercialisation of PVSCs. ....

Macau General , Hong Kong , Li Fengzhu , Yang Zhengbao , Wu Shengfan , Guangdong Hong Kong , Alex Jen Kwan Yue , Francis Lin , Deng Xiang , Chen Xiankai , Lee Shau Kee , Research Grants Council , Method Of Research , Macao Joint Laboratory Of Optoelectronic , Technology Commission , Green Tech Fund Of The Environment , Ecology Bureau In Hong Kong , Japan Electrical Safety Environment Technology Laboratories , City University Of Hong Kong , City University , Professor Alex Jen Kwan Yue , Lee Shau Kee Chair Professor , Materials Science , Hong Kong Institute , Clean Energy , Japan Electrical Safety ,