Modification of a-C:H film surface by atmospheric pressure plasma jet for liquid crystal alignment

2012 ◽  
Vol 523 ◽  
pp. 37-40 ◽  
Author(s):  
Alibi Baitukha ◽  
Shinsuke Mori ◽  
Masaaki Suzuki
Keyword(s):  
Liquid Crystal ◽  
Atmospheric Pressure ◽  
Film Surface ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Atmospheric Pressure Plasma Jet ◽  
Liquid Crystal Alignment ◽  
Pressure Plasma ◽  
Crystal Alignment

Study of Atmospheric Pressure Plasma Jet on Surface Modification of Polyimide Film

2014 ◽  
Vol 900 ◽  
pp. 410-414
Author(s):  
Shi Peng ◽  
Wei Li ◽  
Yu Xu ◽  
Chao Liang Wang ◽  
Ying Guo ◽  
...  
Keyword(s):  
Contact Angle ◽  
Surface Modification ◽  
Atmospheric Pressure ◽  
Film Surface ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Polyimide Film ◽  
Atmospheric Pressure Plasma Jet ◽  
Pressure Plasma ◽  
Wide Range

Polyimide (PI) has good mechanical properties, heat resistance and low temperature performance, and thus shares a wide range of applications. Atmospheric pressure plasma jet was designed for polyimide films surface modification in this paper. The impacts of exposure time and gas ratio on the film surface morphology and property were studied. Scanning Electron Microscope (SEM) results prove that the treated film surface becomes rough and the contact angle decreases rapidly with exposing to plasma. The contact angle did not decrease anymore after extending plasma exposing time to 20 seconds Moreover the intensity of C=O absorption band increases as shown in the Fourier transform infrared spectroscopy (FTIR).

scholarly journals High-Accuracy Surface Topography Manufacturing for Continuous Phase Plates Using an Atmospheric Pressure Plasma Jet

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 683
Author(s):  
Huiliang Jin ◽  
Caixue Tang ◽  
Haibo Li ◽  
Yuanhang Zhang ◽  
Yaguo Li
Keyword(s):  
Surface Topography ◽  
Atmospheric Pressure ◽  
High Efficiency ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Continuous Phase ◽  
High Accuracy ◽  
Phase Plate ◽  
Atmospheric Pressure Plasma Jet ◽  
Pressure Plasma

The continuous phase plate (CPP) is the vital diffractive optical element involved in laser beam shaping and smoothing in high-power laser systems. The high gradients, small spatial periods, and complex features make it difficult to achieve high accuracy when manufacturing such systems. A high-accuracy and high-efficiency surface topography manufacturing method for CPP is presented in this paper. The atmospheric pressure plasma jet (APPJ) system is presented and the removal characteristics are studied to obtain the optimal processing parameters. An optimized iterative algorithm based on the dwell point matrix and a fast Fourier transform (FFT) is proposed to improve the accuracy and efficiency in the dwell time calculation process. A 120 mm × 120 mm CPP surface topography with a 1326.2 nm peak-to-valley (PV) value is fabricated with four iteration steps after approximately 1.6 h of plasma processing. The residual figure error between the prescribed surface topography and plasma-processed surface topography is 28.08 nm root mean square (RMS). The far-field distribution characteristic of the plasma-fabricated surface is analyzed, for which the energy radius deviation is 11 μm at 90% encircled energy. The experimental results demonstrates the potential of the APPJ approach for the manufacturing of complex surface topographies.

Formation of plasma-polymerized superhydrophobic coating using an atmospheric-pressure plasma jet

2019 ◽  
Vol 675 ◽  
pp. 34-42 ◽  
Author(s):  
Md. Mokter Hossain ◽  
Quang Hung Trinh ◽  
Duc Ba Nguyen ◽  
M.S.P. Sudhakaran ◽  
Young Sun Mok
Keyword(s):  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Atmospheric Pressure Plasma Jet ◽  
Superhydrophobic Coating ◽  
Pressure Plasma
Sign in / Sign up

Export Citation Format

Share Document