Fabrication of CdS Thin Film Pattern by CBD Method Using the Self-Assembled Monolayer

Abstract

Microcontact printing of hydrophobic OTS (Octadecyl-Trichloro-Silane) material was made on various substrates, and finely patterned CdS thin film has been fabricated by CBD (Chemical Bath Deposition) method. In the preliminary experiment, it is confirmed that the size of colloid particle and roughness of surface of CdS thin film are increased with increase of pH, fabrication time and temperature. The optimum condition for the selective deposition of CdS film pattern using the SAM with microcontact printing was determined to be pH 10, temperature of 75°C, deposition time of 15 minute. Various patterns of different shape of CdS thin film were fabricated uniformly and satisfactorily in large area by the conditions determined in the present work. The stoichiometric composition of CdS was confirmed to be 1:1 by EDS and XPS.

Development of Fluorine Doped Tin Oxide Thin Films on Glass as TCOs by Spray Pyrolysis Method for Novel Optoelectronic Applications

“…Thin lms of these materials as TCOs are produced by several deposition techniques of PVD and CVD systems. The most studied TCOs are: ZnO: Al (AZO), SnO 2 :F (FTO), In 2 O 3 :Sn (ITO), and Cd 2 SnO 4 (CTO) [7]. These materials are exceptionally capable of multiple functions as they show very good optical transparency in range of 90% for visible light and near infrared radiation.…”

La2O3–B2O3–TiO2 Glass/BaO–Nd2O3–TiO2 ceramic for high quality factor low temperature co-fired ceramic dielectric

“…One method involves the addition of metal oxides such as TiO 2 and Al 2 O 3 into the glasses [10]. The second method employs a mixture of glass (50∼60 wt.%) and ceramic (50∼40 wt.%) [11][12][13][14] while the third deals only with a glass system based on crystalline kinetics and mechanism [15]. However, glassceramic materials must be considered in conjunction with the sintering conditions related to densification and crystallization.…”

“…A rare earth derived glass composition (La 2 O 3 -B 2 O 3 -TiO 2 ) was used for the low melting glass composition, because of the low viscosity of the glass composition, high dielectric constant, and optimized crystallization. A commercial BNT (BaO-Nd 2 O 3 -TiO 2 ) ceramic with good microwave dielectric properties (≈90 for e r , ≈6000 GHz for Q*f 0 , and 6.24 ppm/°C for t f ) was used for the microwave ceramic [11][12][13][14]. The product obtained through this process can be used for low temperature co-fired ceramic materials for microwave applications.…”

“…In order to mitigate the low quality factor in the microwave dielectric, low melting temperature glass has to be transformed into optimized crystallization having low dielectric loss during sintering process [9][10][11][12][13][14]. Previous research on glass-ceramics has led to the development of three leading methods of optimizing crystallization.…”

Effects of Particle Size and Distribution on the Microstructure and Mechanical Properties of SiC Reinforced Al-30Si Alloy Composite

“…The coefficient of thermal expansion mismatch between the SiC particles and the aluminum alloy matrix leads to formation of dislocation along the reinforcement/matrix interfaces during cooling, and notably these thermal induced dislocations lead to inhomogeneous plastic yielding during loading. The particle size and distribution have obvious effects on the physical and mechanical properties of the composites [5] . When the large sized particles are used, clustering and voids existed in the matrix, and the cavitas has been treated pre-existed cracks.…”