Optical Properties of CaF2 Thin Film Deposited on Borosilicate Glass and Its Electrical Performance in PV Module Applications

Applied Sciences

MuhammadAleem Zahid¹  Junsin Yi¹  YoungHyun Cho¹  ShahzadaQamar Hussain² 

[1] College of Information and Communication Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Korea;Department of Physics, COMSATS University Islamabad, Lahore campus, Lahore 54000, Pakistan;

关键词: high efficiency;    reflection;    transmittance;    anti-reflection coating;    calcium fluoride;    conventional PV module;   

DOI  :  10.3390/app10165647

来源: DOAJ

【 摘 要 】

Calcium fluoride (CaF₂) is deposited via vacuum thermal evaporation on borosilicate glass to produce an anti-reflection coating for use in solar modules. Macleod’s essential simulation is used to optimize the thickness of the CaF₂ coating on the glass. Experimentally, a 120 ± 4 nm-thin CaF₂ film on glass shows an average increase of ~4% in transmittance and a decrease of ~3.2% in reflectance, respectively, when compared to that of uncoated glass (Un CG), within the wavelength spectrum of approximately 350 to 1100 nm. The electrical PV performance of CaF₂-coated glass (CaF₂-CG) was analyzed for conventional and lightweight photovoltaic module applications. An improvement in the short-circuit current (J_sc) from 38.13 to 39.07 mA/cm² and an increase of 2.40% in the efficiency (η) was obtained when CaF₂-CG glass was used instead of Un CG in a conventional module. Furthermore, J_sc enhancement from 35.63 to 36.44 mA/cm² and η improvement of 2.32% was observed when a very thin CaF₂-CG was placed between the polymethyl methacrylate (PMMA) and solar cell in a lightweight module.

【 授权许可】

Unknown