We report the design of a nanophotonic metal-oxide front contact aimed at perovskite solar cells(PSCs)to enhance optoelectronic properties and device stability in the presence of ultraviolet(UV)light.High-quality Cr-doped ZnO film was prepared by industrially feasible magnetron sputter deposition for the electron transport layer of PSCs.As a means,the influence of the Cr content on the film and device was systematically determined.In-depth device optics and electrical effects were studied using advanced three-dimen-sional opto-electrical multiphysics rigorous simulations,op-timizing the front contact for realizing high performance.The numerical simulation was validated by fabricating PSCs op-timized to reach high performance,energy conversion effi-ciency(ECE)=17.3％,open-circuit voltage(Voc)=1.08 V,short-circuit current density(Jsc)=21.1 mA cm-2,and fill-factor(FF)=76％.Finally,a realistic front contact of nano-photonic architecture was proposed while improving broad-band light absorption of the solar spectrum and light harvesting,resulting in enhanced quantum efficiency(QE).The nanophotonic PSC enables Jsc improvement by～17％while reducing the reflection by 12％,resulting in an estimated conversion efficiency over 23％.It is further demonstrated how the PSCs'UV-stability can be improved without considerably sacrificing optoelectronic performances.Particulars of nano-photonic designed ZnO:Cr front contact,PSCs device,and fabrication process are described.

Md.Akhtaruzzaman;Mohammad Ismail Hossain;Mohammad Aminul Islam;Md.Shahiduzzaman;Ghulam Muhammad;A.K.Mahmud Hasan;Yuen Hong Tsang;Kamaruzzaman Sopian

Solar Energy Research Institute(SERI),Universiti Kebangsaan Malaysia,43600 Bangi,Selangor,Malaysia;Centre for Integrated Systems Engineering and Advanced Technologies(Integra),Faculty of Engineering and Built Environment,Universiti Kebangsaan Malaysia(UKM),43600 Bangi,Selangor,Malaysia;Graduate School of Pure and Applied Sciences,University of Tsukuba,Tsukuba,Ibaraki 305-8573,Japan;Department of Applied Physics,Hong Kong Polytechnic University(PolyU),Kowloon,Hong Kong,China;Department of Electrical and Computer Engineering,University of California,Davis,CA 95616,USA;Department of Electrical Engineering,Faculty of Engineering,University of Malaya,Jalan Universiti,50603 Kuala Lumpur,Selangor,Malaysia;Institute of Sustainable Energy,Universiti Tenaga Nasional(@The National Energy University),Jalan IKRAM-UNITEN,43000 Kajang,Selangor,Malaysia;Nanomaterials Research Institute(NanoMaRi),Kanazawa University,Kakuma,Kanazawa 920-1192,Japan;Department of Computer Engineering,College of Computer and Information Sciences,King Saud University,11543 Riyadh,Saudi Arabia

中国科学：材料科学（英文）

[1]Md.Akhtaruzzaman;Mohammad Ismail Hossain;Mohammad Aminul Islam;Md.Shahiduzzaman;Ghulam Muhammad;A.K.Mahmud Hasan;Yuen Hong Tsang;Kamaruzzaman Sopian-.Nanophotonic-structured front contact for high-performance perovskite solar cells)[J].中国科学：材料科学（英文）,2022(07):1727-1740

Nanophotonic,Particulars

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