TY - JOUR
T1 - Electrostatic spray-deposited CuInGaSe2 nanoparticles
T2 - Effects of precursors' Ohnesorge number, substrate temperature, and flowrate on thin film characteristics
AU - Woo, Ji Hoon
AU - Yoon, Hyun
AU - Cha, Ji Hyun
AU - Jung, Duk Young
AU - Yoon, Sam S.
N1 - Funding Information:
This work was supported by the Human Resources Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP, No. 20104010100640), National Research Foundation of Korea (NRF-2012-0001169), and the Converging Research Center Program through the Ministry of Education, Science and Technology (2010K000969). This work was also supported by the National Research Foundation of Korea ( NRF-2011-0030433 and 2010-0010217 ) grant funded by the Korean government (MEST) and by a grant from the cooperative R&D Program ( B551179-08-03-00 ) funded by the Korea Research Council Industrial Science and Technology .
PY - 2012/12
Y1 - 2012/12
N2 - The effect of precursor viscosity, substrate temperature, and flow rate on CuInGaSe2 nanoparticle-based thin films deposited by an electrostatic spray deposition (ESD) technique are studied. ESD is superior to pneumatic spraying because it produces nano-scale, self-dispersive (non-agglomerating), highly wettable (electrowetting) and adhesive droplets, which collectively yield a uniform coating on the substrate. The synthesized CuInGaSe2 nanoparticles were added to 4 different solvents: ethanol (E), butyl carbitol (BC), ethylene glycol (EG), and diethylene glycol (DEG). Subsequently, the solvents were electrostatically sprayed onto a molybdenum-coated soda-lime glass substrate. The solvent that yielded the most uniform surface morphology for the coated materials was identified. The surface roughness of the coated CIGS thin film, which depends on viscosity and the substrate temperature, was studied by AFM characterization.
AB - The effect of precursor viscosity, substrate temperature, and flow rate on CuInGaSe2 nanoparticle-based thin films deposited by an electrostatic spray deposition (ESD) technique are studied. ESD is superior to pneumatic spraying because it produces nano-scale, self-dispersive (non-agglomerating), highly wettable (electrowetting) and adhesive droplets, which collectively yield a uniform coating on the substrate. The synthesized CuInGaSe2 nanoparticles were added to 4 different solvents: ethanol (E), butyl carbitol (BC), ethylene glycol (EG), and diethylene glycol (DEG). Subsequently, the solvents were electrostatically sprayed onto a molybdenum-coated soda-lime glass substrate. The solvent that yielded the most uniform surface morphology for the coated materials was identified. The surface roughness of the coated CIGS thin film, which depends on viscosity and the substrate temperature, was studied by AFM characterization.
KW - CIGS thin film
KW - Electrostatic spray deposition
KW - Nanoparticle
KW - Substrate temperature
KW - Viscosity
UR - http://www.scopus.com/inward/record.url?scp=84865487418&partnerID=8YFLogxK
U2 - 10.1016/j.jaerosci.2012.06.003
DO - 10.1016/j.jaerosci.2012.06.003
M3 - Article
AN - SCOPUS:84865487418
SN - 0021-8502
VL - 54
SP - 1
EP - 12
JO - Journal of Aerosol Science
JF - Journal of Aerosol Science
ER -