TY - JOUR
T1 - Metallic alloy nanoparticle-based fabrication and optical properties of a Cu(In1-xGax)S2 absorber layer for solar cells
AU - Choi, Yo Min
AU - Lee, Young In
AU - Kim, Seil
AU - Choa, Yong Ho
PY - 2014/12/5
Y1 - 2014/12/5
N2 - A highly-densified Cu(In1-xGa x)S2 (CIGS2) absorber layer was fabricated using copper, indium and gallium (CIG) metallic alloy nanoparticles synthesized by salt-assisted ultrasonic spray pyrolysis (SAUSP) followed by direct thermal reduction. The reduction process in salt matrix minimized aggregation of CIG metallic alloy nanoparticles that have the potential to lead to higher film densification during sulfurization. To optimize the amount of salt, various NaCl/precursor ratios were used for SAUSP and Cu-In metallic alloy nanoparticles with average particle size of 79 nm were obtained. The CIGS2 obtained in the present study exhibited a variable band-gap ranging from 1.46 to 2.4 eV depending on the Ga/(In + Ga) ratio, which corresponded to the respective bulk materials.
AB - A highly-densified Cu(In1-xGa x)S2 (CIGS2) absorber layer was fabricated using copper, indium and gallium (CIG) metallic alloy nanoparticles synthesized by salt-assisted ultrasonic spray pyrolysis (SAUSP) followed by direct thermal reduction. The reduction process in salt matrix minimized aggregation of CIG metallic alloy nanoparticles that have the potential to lead to higher film densification during sulfurization. To optimize the amount of salt, various NaCl/precursor ratios were used for SAUSP and Cu-In metallic alloy nanoparticles with average particle size of 79 nm were obtained. The CIGS2 obtained in the present study exhibited a variable band-gap ranging from 1.46 to 2.4 eV depending on the Ga/(In + Ga) ratio, which corresponded to the respective bulk materials.
KW - Metallic alloy nanoparticle
KW - Salt matrix annealing
KW - Salt-assisted ultrasonic pyrolysis
UR - http://www.scopus.com/inward/record.url?scp=84904892517&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2014.06.174
DO - 10.1016/j.jallcom.2014.06.174
M3 - Article
AN - SCOPUS:84904892517
SN - 0925-8388
VL - 615
SP - 496
EP - 500
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -
