Priyadarshini Priyanka, Panda Swasti Padma, Parida Abinash, Naik Ramakanta
Institute of Chemical Technology, Indian Oil Odisha Campus, Bhubaneswar, 751013, India.
Department of Chemistry, School of Applied Science, KIIT Deemed to be University, Bhubaneswar, 751024, India.
Dalton Trans. 2024 Aug 27;53(34):14481-14495. doi: 10.1039/d4dt01724b.
The ternary ZnInS has recently gained significant attention due to its potential applications in various optoelectronics and photocatalysis sectors. In the current study, ZnInS nanoparticles were prepared using a simple microwave-assisted synthesis method with different irradiation powers varying from 180 W-720 W. Structural analysis confirmed their polycrystalline nature with the appearance of ZnInS and InS phases. The variation in diffraction pattern intensity and Raman vibrational bands with irradiation power indicates structural rearrangements induced with power variation. Morphological studies confirmed the formation of agglomerate nanoparticles with size variation as induced by different microwave powers. Broad absorption across the visible and near-infrared regions and the increased band gap enhance their photocatalytic and sensing applications. An increased irradiation power in the ZnInS lattice reduced intermediate levels within the band gap, altering the optical responsiveness. The blue shift in absorption edges with microwave power increased the optical band gap by reducing disorder and defects. The refractive indices were estimated using different theoretical models and reduced with an increase in the band gap. Thermal analysis revealed endothermic peaks. These ZnInS nanoparticles displayed an enhanced photocurrent under white light, increasing tenfold with microwave power. The greater powered ZIS (ZIS-720 W) nanomaterial showed the best photoresponse and is well suited for optoelectronic application. All of their optical and electrical properties make them suitable for various optoelectronic devices, particularly in detection applications.
三元化合物ZnInS最近因其在各种光电子和光催化领域的潜在应用而备受关注。在当前的研究中，采用简单的微波辅助合成方法，在180 W至720 W的不同辐照功率下制备了ZnInS纳米颗粒。结构分析证实了它们的多晶性质，并出现了ZnInS和InS相。衍射图案强度和拉曼振动带随辐照功率的变化表明功率变化引起了结构重排。形态学研究证实了不同微波功率诱导形成了尺寸变化的团聚纳米颗粒。在可见光和近红外区域的宽吸收以及带隙的增加增强了它们的光催化和传感应用。ZnInS晶格中辐照功率的增加降低了带隙内的中间能级，改变了光学响应性。吸收边随微波功率的蓝移通过减少无序和缺陷增加了光学带隙。使用不同的理论模型估计了折射率，并且折射率随着带隙的增加而降低。热分析揭示了吸热峰。这些ZnInS纳米颗粒在白光下显示出增强的光电流，随着微波功率增加了十倍。功率更大的ZIS（ZIS-720 W）纳米材料表现出最佳的光响应，非常适合光电子应用。它们所有的光学和电学性质使其适用于各种光电器件，特别是在检测应用中。
