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Cd1−xZnxTe films were prepared on borosilicate glass substrate using RF magnetron sputtering in this work. The effects of sputtering power, sputtering pressure and substrate temperature on the properties of the films were investigated in detail. The films were annealed in CdCl2 atmosphere for 2 h at 200 °C, 300 °C, and 400 °C, respectively. The effects of annealing treatment on the properties of the films were also investigated. The properties of the films were investigated by x-ray diffraction, atomic force microscopy, and current–voltage (I–V) characterization. The results indicate that crystalline quality and the average grain size of the films increases with the increases of sputtering power. The grain size of the films becomes larger as the substrate temperature increases. The Zn concentration of the films rises as the sputtering pressure increases. After annealing, the grain size of the films becomes larger, furthermore, the resistivity decreases.

Cadmium zinc telluride (CdZnTe) is considered to be an ideal material for manufacturing high-energy radiation detectors with large scale and long-term stability. To solve the problem of film fragmentation during the process of preparing CdZnTe thick films using the close-spaced sublimation method, Ga-doped ZnO (GZO) was chosen as the substrate for CdZnTe film growth, since it has a similar thermal expansion coefficient, lower lattice mismatch, and better adhesion compared with CdZnTe. For comparison, borosilicate glass and fluorine-doped tin oxide substrates were also used to deposit CdZnTe under the same preparation conditions. The structure and physical properties of the CdZnTe film were investigated in detail by using atomic force microscopy, scanning electron microscopy, energy-dispersive spectrometry, x-ray diffraction analysis, and current–voltage (I–V) measurements. The results indicated that CdZnTe film grown on GZO film substrate has large grain size, high growth rate, high quality, and good adhesion.

Series of gold and ceria supported γ-Al2O3 catalysts were developed for the oxidative esterification of methacrolein with methanol. All the catalysts were prepared through one step deposition-precipitation method, and K2CO3 and urea were used as precipitant, respectively. Au, CeO2 and γ-Al2O3 could self-assemble unique particle morphology during co-precipitation process and form semi-core shell or core shell structure after calcination. The relationship between catalytic reactivity and structural characteristics were analyzed by SEM, TEM, EDS, BET, XRD, XPS, etc. Among Au-CeO2/γ-Al2O3 (K2CO3), Au-Ce/γ-Al2O3 (Urea) and Au/γ-Al2O3 (Urea) catalysts with different active components and precipitant, the last two exhibited higher catalytic activity. Moreover, the Ce-doped catalysts shown higher stability than just Au supported on pure alumina. The active stability of the optimum Au-Ce/γ-Al2O3 catalyst was evaluated with seven-time cyclic reactions exhibiting high stability and activity with the yield of MMA above 90%.

A series of highly dispersed cobalt-based catalysts on N-doped ordered porous carbon (Co-NOPC) were synthesized using the sacrificial-template method. MCM-41, ZSM-5 and SBA-15 were employed as hard templates with 2,2′-bipyridine as the ligand. The physical and chemical properties of the Co-NOPC catalyst were characterized by Raman, XRD, SEM, TEM, EDX, ICP, BET, XPS. Co-NOPC had been proven to be a highly efficient catalyst for oxidative esterification of furfural (FUR) to methyl 2-furoate without alkaline additives. Catalytic performance was correlated to the dispersed cobalt, porous structure and specific surface area. The relationship between oxygen activation and the strong interaction of cobalt and pyridine nitrogen were confirmed by XPS. Catalytic performance enhancement mechanisms were correlated with the redistribution of electrons at the interface between carbon material and cobalt atoms through the molecular dynamics method and a reaction mechanism was also proposed. The optimized catalysts showed outstanding catalytic activity and stability and no obvious decrease in activity was found after 6 cycles with 99.6% FUR conversion and 96% methyl 2-furoate selectivity.

β- Ga2O3 films were grown by radio-frequency magnetron sputtering method. The influence of Ga2O3 buffer layers and annealing treatment on the structural, optical, morphological and electrical properties of Ga2O3 films was studied. The results revealed an improvement of crystalline quality and transmittance of annealed β- Ga2O3 films prepared with homo-buffer layers. Ga2O3 film UV photodetectors were fabricated with a new B and Ga co-doped ZnO films (BGZO)/Au interdigitated electrode. A good ohmic contact was formed between the film and the electrode. For the detector based on Ga2O3 films with buffer layers, a higher value of photo response and faster response times was obtained.

ZnTe films were prepared by close spaced-sublimation (CSS) method. The effects of substrate temperature on ZnTe films were investigated. The results showed cubic structure with strong (111) texture for all the films. Films with higher crystalline quality and larger grain size were obtained at higher substrate temperature. A red-shift of the optical bandgap and reduction of resistivity were observed with increasing substrate temperature.