Fang, C.-Y.C.-Y.FangLiu, Y.-L.Y.-L.LiuLee, Y.-C.Y.-C.LeeChen, H.-L.H.-L.ChenWan, D.-H.D.-H.WanYu, C.-C.C.-C.YuHSUEN-LI CHEN2020-05-122020-05-122013https://scholars.lib.ntu.edu.tw/handle/123456789/491308Nanoparticle stacks with graded refractive indices enhance the omnidirectional light harvesting of solar cells and the light extraction of light-emitting diodesjournal article10.1002/adfm.2012019492-s2.0-84874958953https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874958953&doi=10.1002%2fadfm.201201949&partnerID=40&md5=9236c24c4e72738d6bed8d3c6dbb7afe