Hsiao H.-H.Chang H.-C.HUNG-CHUN CHANGYUH-RENN WUHUI-HSIN HSIAO2022-09-192022-09-192014https://www.scopus.com/inward/record.uri?eid=2-s2.0-84905995069&doi=10.1063%2f1.4893025&partnerID=40&md5=7edf061dd5258984e71beb88a3c73019https://scholars.lib.ntu.edu.tw/handle/123456789/621125The optical and electrical properties of a photonic-plasmonic nanostructure on the back contact of thin-film solar cells were investigated numerically through the three-dimensional (3D) finite-difference time-domain method and the 3D Poisson and drift-diffusion solver. The focusing effect and the Fabry-Perot resonances are identified as the main mechanisms for the enhancement of the optical generation rate as well as the short circuit current density. However, the surface topography of certain nanopattern structures is found to reduce the internal electrostatic field of the device, thus limiting charge collection. The optimized conditions for both optics and electronics have been analyzed in this paper. © 2014 AIP Publishing LLC.[SDGs]SDG7Finite difference time domain method; Charge collection; Electrical modeling; Fabry-Perot resonances; Finite-difference time-domain (FDTD) methods; Optical and electrical properties; Optical generation; Optimized conditions; Thin-film solar cells; Solar cellsjournal article10.1063/1.48930252-s2.0-84905995069