Title :
Effect of injection rate on the growth of Cu2ZnSnS4 nanoparticles synthesized by hot injection method
Author :
Mao-Cheng Huang ; Shih-Yuan Wei ; Chia-Hao Hsu ; Wei-Hao Ho ; Yue-Shun Su ; Chih-Huang Lai
Author_Institution :
Dept. of Mater. Sci. & Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
In this study, we have obtained uniform and high quality Cu2ZnSnS4 (CZTS) nanocrystals which were synthesized by using the hot injection method. The effect of injection rate on growth mechanism was investigated. The injection rates were varied from 2.5 to 20mL/h. The CZTS nanocrystals were characterized by TEM, XRD, and Raman. The Raman spectrum revealed good crystallinity, and TEM images showed uniform dispersion. As the injection rates increased, the CZTS particles size become larger and less uniform, which was consistent with LaMer model. The composition of CZTS nanocrystals was almost close to stoichiometry, and we obtained the CZTS nanoparticles with good crystallinity for the case injected at 10mL/h.
Keywords :
Raman spectra; X-ray diffraction; copper compounds; nanoparticles; nanostructured materials; semiconductor thin films; solar cells; sulphur compounds; tin compounds; transmission electron microscopy; zinc compounds; CZTS nanocrystals; CZTS nanoparticles; CZTS particles; Cu2ZnSnS4; Raman spectrum; TEM; TEM images; XRD; crystallinity; growth mechanism; hot injection method; injection rate effect; stoichiometry; thin film solar cells; Nanocrystals; Photovoltaic cells; Raman scattering; System-on-chip; X-ray scattering; Cu2ZnSnS4; Growth mechanism; Hot injection; LaMer model; Raman spectrum;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2013 IEEE 39th
Conference_Location :
Tampa, FL
DOI :
10.1109/PVSC.2013.6744172
