TY - JOUR
T1 - Fabrication of high-transmittance and low-reflectance meter-scale moth-eye film via roll-to-roll printing
AU - Ju, Sucheol
AU - Choi, Jin Young
AU - Chae, Dongwoo
AU - Lim, Hangyu
AU - Kang, Hojung
AU - Lee, Heon
N1 - Funding Information:
This work was supported by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (Grant No. 2019K1A47A02113032), the NRF grant funded by the Korea government (MSIT) (Grant Number 2020R1A2C3006382), and the Technology Innovation Program (20000887, Development of self-healing impact-resistant film coating material and process technology for rollable displays) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea).
PY - 2020/12/11
Y1 - 2020/12/11
N2 - Anti-reflection technology is a core technology in the field of optoelectronic devices that is used to increase efficiency by reducing reflectance. In particular, the bio-mimetic moth-eye pattern has the advantage of being independent of wavelength, polarization, and angle of incidence. In this study, we fabricated a 1.1 m wide meter-scale moth-eye film using roll-to-roll printing. A uniform moth-eye pattern with a height of 170 nm was formed, which reduced the average reflectance value by 3.2% and increased the average transmittance value by 3.1%, in a wide wavelength range of 400–700 nm. Additionally, the moth-eye film coated with a self-assembled monolayer (SAM) exhibited a contact angle of 140.3◦, almost equal to the superhydrophobic angle of 150◦. Furthermore, the contact angle, transmittance, and reflectance of the SAM-coated moth-eye film were maintained after an environmental test, which was conducted for 168 h at 60 ◦C and 80% humidity.
AB - Anti-reflection technology is a core technology in the field of optoelectronic devices that is used to increase efficiency by reducing reflectance. In particular, the bio-mimetic moth-eye pattern has the advantage of being independent of wavelength, polarization, and angle of incidence. In this study, we fabricated a 1.1 m wide meter-scale moth-eye film using roll-to-roll printing. A uniform moth-eye pattern with a height of 170 nm was formed, which reduced the average reflectance value by 3.2% and increased the average transmittance value by 3.1%, in a wide wavelength range of 400–700 nm. Additionally, the moth-eye film coated with a self-assembled monolayer (SAM) exhibited a contact angle of 140.3◦, almost equal to the superhydrophobic angle of 150◦. Furthermore, the contact angle, transmittance, and reflectance of the SAM-coated moth-eye film were maintained after an environmental test, which was conducted for 168 h at 60 ◦C and 80% humidity.
KW - Environmental test
KW - Meter-scale
KW - Moth-eye film
KW - Roll-to-roll printing
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U2 - 10.1088/1361-6528/aba7e4
DO - 10.1088/1361-6528/aba7e4
M3 - Article
C2 - 32693401
AN - SCOPUS:85092801899
VL - 31
JO - Nanotechnology
JF - Nanotechnology
SN - 0957-4484
IS - 50
M1 - 505301
ER -