材料科學與工程 材料物理與化學，外文文獻翻譯及原文

Enhanced light harvesting of Si solar cells vialuminescent down-shifting using YVO4:Bi3+,Eu3+nanophosphors

利用YVO4: Bi3+,Eu3+納米熒光粉發(fā)光下轉換來加強硅太陽能電池對光的吸收

ABSTRACT
The colloids of YVO4nanoparticles on microtextured Si surface are demonstrated to have promising potential for efficientsolar spectrum utilization in crystalline Si solar cells. The solar cells showed an enhancement of 4% in short-circuit currentdensity and approximately 0.7% in power conversion efficiency when coated with YVO4nanoparticles. The properties ofcells integrated with YVO4nanoparticles were characterized to identify the role of YVO4in improved light harvesting. Thecurrent experiments conclude that the colloids of YVO4nanoparticles not only act as luminescent down-shifting centers in theultraviolet region but also serve as an antireflection coating for enhancing the light absorption in the measured spectral regime.

摘要
在硅表面微結構上的YVO4納米膠體顆粒被證實能夠有效促進晶硅太陽能電池的紫外光譜。這種覆蓋了YVO4納米顆粒的太陽能電池的短路電流增強了4%，能量轉換效率大約提高了7%。電池的性能集中在表征YVO4納米粒子來確定YVO4能夠增強光吸收的作用。電流實驗包含了YVO4納米膠體顆粒不僅能夠在紫外光譜中作為發(fā)光下轉換中心還可以作為減反射層來加強實測光譜中光的吸收。