Qomariyah Lailatul, Arif Aditya F, Widiyastuti W, Winardi Sugeng, Taniguchi Shuto, Ogi Takashi
Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo Surabaya 60111 Indonesia.
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University 1-4-1 Kagamiyama Higashi-Hiroshima Hiroshima 739-8527 Japan
RSC Adv. 2018 Jul 23;8(46):26277-26282. doi: 10.1039/c8ra04787a. eCollection 2018 Jul 19.
Creating hollow structures is one strategy for tuning the optical properties of materials. The current study aimed to increase the optical transmittance of silica (SiO) particles. To this end, hexagonal-shaped hollow silica plate (HHSP) particles were synthesized from tetraethyl orthosilicate (TEOS) and zinc oxide (ZnO) template particles, using a microwave-assisted hydrothermal method. The size and shell thickness of the HHSP particles could be adjusted by using different TEOS/ZnO molar ratios and different ZnO template sizes, respectively. The optical transmittance of the HHSP particles depended on the shell thickness and particle size. The highest transmittance was 99% in the ultraviolet and visible region (300-800 nm) and was exhibited by HHSP particles with the thinnest shell thickness of 6.3 nm. This transmittance was higher than that exhibited by spherical hollow silica particles with a similar shell thickness. This suggested morphology-dependent transmittance for the semiconducting material. These preliminary results illustrate the promising features of the HHSP particles and suggest their potential application in future transparent devices.
创建中空结构是调整材料光学性质的一种策略。当前的研究旨在提高二氧化硅（SiO）颗粒的光学透过率。为此，使用微波辅助水热法，由正硅酸乙酯（TEOS）和氧化锌（ZnO）模板颗粒合成了六边形中空二氧化硅板（HHSP）颗粒。HHSP颗粒的尺寸和壳厚度可分别通过使用不同的TEOS/ZnO摩尔比和不同的ZnO模板尺寸来调节。HHSP颗粒的光学透过率取决于壳厚度和颗粒尺寸。在紫外和可见光区域（300 - 800 nm），最高透过率为99%，由壳厚度最薄为6.3 nm的HHSP颗粒表现出来。这种透过率高于具有相似壳厚度的球形中空二氧化硅颗粒所表现出的透过率。这表明了半导体材料的形态依赖性透过率。这些初步结果说明了HHSP颗粒的良好特性，并暗示了它们在未来透明器件中的潜在应用。
