TY - JOUR
T1 - Uniform anti-reflective films fabricated by layer-by-layer ultrasonic spray method
AU - Kwon, Soon Il
AU - Kyung, Kyu Hong
AU - Park, Jun Yong
AU - Lee, In Seon
AU - Kim, Jin Ho
AU - Kim, Sae Hoon
AU - Shiratori, Seimei
N1 - Funding Information:
The first author Mr. Soon-il Kwon is grateful for the JASSO scholarship of Keio University, Japan. We acknowledge Dr. Fujimoto for the guidance of the optical simulation.
Publisher Copyright:
© 2019
PY - 2019/11/5
Y1 - 2019/11/5
N2 - Herein, a layer-by-layer (LBL) ultrasonic spray method was developed and used to successfully fabricate anti-reflective (AR) multilayer thin films. For the chemical and physical deposition of the AR thin film, layers of poly(diallyldimethylammonium chloride) (PDDA) and SiO2 nanoparticles were alternately deposited, producing a film that exhibited a uniform surface, low roughness, and high transmittance. The average thickness of each (PDDA/SiO2) bilayer was determined as 10–15 nm, and the refractive index was n=1.28 at a wavelength of 628 nm, while exhibiting a 99% transmittance in the visible range. This LBL method using the ultrasonic spray technique is effective in controlling film characteristics such as structure, transmittance, refractive index, roughness, and film thickness. The ultrasonic spray LBL technique can be valuable for the medical industry and biomedical fields, which require uniformity in and precise control of thin films.
AB - Herein, a layer-by-layer (LBL) ultrasonic spray method was developed and used to successfully fabricate anti-reflective (AR) multilayer thin films. For the chemical and physical deposition of the AR thin film, layers of poly(diallyldimethylammonium chloride) (PDDA) and SiO2 nanoparticles were alternately deposited, producing a film that exhibited a uniform surface, low roughness, and high transmittance. The average thickness of each (PDDA/SiO2) bilayer was determined as 10–15 nm, and the refractive index was n=1.28 at a wavelength of 628 nm, while exhibiting a 99% transmittance in the visible range. This LBL method using the ultrasonic spray technique is effective in controlling film characteristics such as structure, transmittance, refractive index, roughness, and film thickness. The ultrasonic spray LBL technique can be valuable for the medical industry and biomedical fields, which require uniformity in and precise control of thin films.
KW - Anti-refletive
KW - Deposition
KW - Multilayer thin films
KW - Refractive index
KW - Transmittance
KW - Ultrasonic spray layer-by-layer method
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U2 - 10.1016/j.colsurfa.2019.123785
DO - 10.1016/j.colsurfa.2019.123785
M3 - Article
AN - SCOPUS:85070704868
SN - 0927-7757
VL - 580
JO - Colloids and Surfaces A: Physicochemical and Engineering Aspects
JF - Colloids and Surfaces A: Physicochemical and Engineering Aspects
M1 - 123785
ER -