增强GaAs/AlGaAs量子点太阳能电池的设计  

Design of Enhanced GaAs/AlGaAs Quantum Dot Solar Cells

作　　者：刘红梅[1,2] 孟田华[1,2] 田翠锋[1] 刘培栋 康永强[1] 杨春花[1] LIU Hongmei;MENG Tian-hua;TIAN Cui-Feng;LIU Pei-dong;KANG Yong-qiang;YANG Chun-hua(School of Physics and Electronic Science,Shanxi Datong University,Datong Shanxi,037009;Institute of Solid State Physics,Shanxi Datong University,Datong Shanxi,037009)

机构地区：[1]山西大同大学物理与电子科学学院,山西大同037009 [2]山西大同大学固体物理研究所,山西大同037009

出　　处：《山西大同大学学报（自然科学版）》2022年第3期16-18,30,共4页Journal of Shanxi Datong University(Natural Science Edition)

基　　金：大同市重点研发项目[2020019];云冈专项[2020YGZX002][2020YGZX003];山西大同大学教学改革创新项目[XJG2020216]。

摘　　要：随着石油等能源带来的环境污染问题越来越严重,人们对开发清洁、可再生的太阳能的需求也越来越迫切。针对这种现状,设计了一个表面等离激元量子点太阳能电池,它是通过在常规4周期GaAs/AlGaAs量子点太阳能电池的顶端和底端分别引入金属光栅、反射层构成。结果表明,该电池能通过顶端的金属光栅来激发表面等离激元增强透射光,并结合底端的反射作用实现了吸收率的大幅度提升,最大吸收率高达91.44%,同时其量子效率在波长566.9 nm处显示出最大值35.7%。With the increasingly serious environmental pollution caused by energy such as petroleum,the demand for developing clean and renewable solar cells is becoming more and more urgent.In view of this situation,the quantum dot solar cell is designed in this paper,which is enhanced by the surface plasmon effect.A metal grating and a reflective layer are respectively introduced at the top and the bottom of the conventional solar cells,which is mainly composed of a 4-period GaAs/AlGaAs quantum dot composite layer.The results show that the cell can excite the surface plasmon to enhance light transmission by the metal grating at the top,and achieve a significant increase of the absorptivity by combining with the reflection at the bottom,which is up to 91.44%,and its quantum efficiency shows a maximum value of 35.7% at the wavelength of 566.9 nm.

关 键 词：量子点太阳能电池 GAAS/ALGAAS 吸收率 

分 类 号：TN215[电子电信—物理电子学]