Papers by Author: Chen Hui Li

Abstract: A coating methods and the structure of Low-E glass are described in this paper, and the optical and thermal properties of the samples are analyzed as well. The results show that the Low-E glass has a high transmittance in visible region and with a higher reflectance in middle-infrared band and far-infrared band. It can effectively prevent the heat through the glass. Therefore, Low-E glass can save energy by letting enough sunlight into the room and by impeding the heat through the glass effectively.

Abstract: The rheological behavior of sub-micron zinc oxide and alumina mixture powders aqueous suspension has been investigated over a wide range of volumetric solids loading (Ø = 0.2–0.55), in which polyacrylic acid (PAA) was used as a dispersant. The dependence of relative viscosity (η_r)–solids loading (Ø) determined experimentally was compared with models. The experimental results showed that the suspension apparent viscosity (η) reached a minimum as the dispersant addition reached 0.2 wt%, the viscosity increased with the solids loading and the rheological behavior of the suspension was content basically with the model proposed by Liu. From η_r–Ø relationship the maximum solid loading (Ø_m) was estimated to be 0.55, which was in accord with our experimental results.

Abstract: Transparent conducting aluminum-doped zinc oxide (AZO) films have been prepared on soda-lime glass substrates by radio frequency magnetron sputtering using a high density ceramic target at different substrate temperatures. The structural, morphology, electrical, and optical properties of the AZO thin films were investigated by X-ray diffraction, scanning electron microscope, Hall measurement, and optical transmission spectroscopy, and which were strongly influenced by substrate temperatures. Films with better texture, higher transmission, lower resistivity and larger carrier concentration were obtained for the samples fabricated at higher substrate temperature. The AZO film with the lowest resistivity of 4.63×10⁻⁴ Ω.cm and an average optical transmission of 92% in the visible range was deposited on the substrate heated at 450 °C. The optical bandgap depends on the deposition condition, and was in the range of 3.35~3.59 eV.