Title :
Using a Ti/TiN composite structure as the diffusion barrier layer for CIGS solar cell application on stainless steel substrates
Author :
Wei-Sheng Liu ; Hung-Chun Hu ; Nen-Wen Pu ; Shih-Chang Liang
Author_Institution :
Dept. of Photonics Eng., Yuan Ze Univ., Chungli, Taiwan
Abstract :
This study examines the use of a diffusion barrier layer of Ti/TiN composite structures on 430 SS substrates. Secondary ion mass spectrometer (SIMS) measurements indicated that the Ti/TiN composite structure efficiently blocked Fe diffusion. An appropriate composition of sodium (Na) in the CIGS absorption layer improved the open-circuit voltage and fill factor (FF) in CIGS solar cells. An optimal conversion efficiency of 7.4% was achieved without using antireflective coating.
Keywords :
diffusion barriers; secondary ion mass spectroscopy; solar cells; stainless steel; titanium compounds; CIGS solar cell application; Ti-TiN; composite structure; diffusion barrier layer; fill factor; open circuit voltage; secondary ion mass spectrometer measurements; stainless steel substrates; Absorption; Crystals; Films; Iron; Photovoltaic cells; Substrates; Tin;
Conference_Titel :
Active-Matrix Flatpanel Displays and Devices (AM-FPD), 2014 21st International Workshop on
Conference_Location :
Kyoto
DOI :
10.1109/AM-FPD.2014.6867182
