This work aims to enhance the surface wettability and adhesion of Parylene-C (poly-chloro-p-xylylene C) thin film on PMMA, glass and aluminum substrates by chemical vapor deposition. The results show that: (1) 0.56, 1, and 1.55g Parylene-C powders can deposit 200, 400, and 600nm films, respectively. (2) After oxygen-plasma pretreatment, the surface roughness of the 200nm-thickness film on glass substrate specimens decreases from 18nm to 7nm. (3) After dipped in prescription solution pretreatment, the residual stress reduces from 107MPa to 64MPa on glass substrate specimens. (4) In contact angle tests, the 600nm-thickness film on various flat substrates deposited process that has surface hydrophobic. (5) The critical load of 600nm-thickness film increases from 14.1 to 18.5mN, showing the substrate after dipped in prescription solution pretreatment can improve the adhesion of the Parylene-C thin film on flat glass substrate specimens.

Organic light emitting diodes (OLEDs) have the potential to compete with other rivals in applications of lighting and small size displays because of low power consumption. To achieve commercial standard, however, the luminance efficiency and device lifetime of the OLEDs still need to be improved. This work characterizes the performance of OLEDs improved by Poly (3,4-ethylenedioxythiophene) poly (styrenesulfonate) (PEDOT:PSS). PEDOT:PSS films are deposited on ITO glass by spin coating at the first, and then the hole transporting layer and electron transporting layer of the OLED materials N, N '-bis (naphthalene-1-yl)-N, N '-bis (phenyl) benzidine/tris-(8-hydroxyquinoline) aluminum (NPB/Alq3) are thermally evaporated with 1 Å/s deposition rate. The thickness effects of the PEDOT:PSS on the OLED performance are studied. The result shows that PEDOT:PSS effectively improves the luminance of the OLEDs, where 40 nm thick PEDOT:PSS increases 12% and 30 nm thick increases 31% luminance, respectively. Furthermore, the effects of the PEDOT:PSS on the mechanical properties of the OLED are also studied.

Atomic layer deposition (ALD) is utilized to grow high performance zinc oxide (ZnO) thin films, where the effects of ALD process temperature on the thin film properties are also studied in this work. Some major properties of the ALD ZnO films are characterized and compared with those of sputtered ZnO films. Significant differences are observed that the electrical resistances of the ALD ZnO films are largely improved, while the optical transmittances also increase. Nevertheless, the adhesion and mechanical properties of the ALD films are worse than the sputtered films because of the weak bonding in the ALD process. For various substrate temperatures, the ALD ZnO films with 200°C behave the best performance.

This paper asserts a method of controlling the cursor based on the Fisher linear discriminant (FLD) analysis to recognize six classifications of human face movements, which are face movements upwards, downwards, leftwards, rightwards, blinking of the right eye and blinking of the left eye. These classifications represent cursor movements upward, downwards, leftwards, rightwards, and the right or left button on the mouse respectively. This method can be separated into two areas: face detection and gaze recognition. Face detection is to convert the RGB color space into YCbCr in order to segment skin tone areas, where the human face area is located by using the connect component labeling method. Gaze recognition is accomplished by building a gaze recognition training model parameter through FLD algorithm. Then, by using the Euclidean distance as the rule of decision, match the detected facial image to the parameters of this model to find the shortest Euclidean distance and its corresponding classification to control cursor movements.

With the advantage of simplicity and low cost, ink jet printing has the potential to replace the traditional chemical and physical deposition technology in thin film fabrication. In this work, silver conductive thin films are deposited on glass and polyimide substrates by ink jet printing, where some major characteristics of the printed thin films are investigated and compared to those deposited by sputtering. The micro texture and residual stresses of the thin films are measured with X-ray diffractometry (XRD). Using thin film scratch tester, the adhesion of thin films deposited by both ink jet printing and sputtering is studied. Further observations on electric and optical performance by using visible wavelength photospectrometry, four-point probe, and surface profiler are also discussed. The result shows that the micro texture of the printed thin film behaves as good as the sputtered thin film. Furthermore, the micro scratch result illustrates that the adhesion of the printed thin film is even better than the sputtered thin film. It emphasizes that, after certain baking process, the ink jet printing has the possibility to replace sputtering in thin film deposition, especially for the polymer substrates.