Yuan Ze, Yang Lanlan, Han Dongni, Sun Guorong, Zhu Chenyu, Wang Yao, Wang Qiao, Artemyev Mikhail, Tang Jianguo
Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Science & Technology Cooperation on Hybrid Materials, Qingdao University, 308 Ningxia Road, Qingdao 266071, People's Republic of China.
Research Institute for Physical Chemical Problems of the Belarusian State University, Minsk 220006, Belarus.
ACS Omega. 2021 Jul 16;6(29):18939-18947. doi: 10.1021/acsomega.1c02180. eCollection 2021 Jul 27.
High-efficiency photoluminescence quaternary hexagon Zn-Cu-In-S (ZCIS) nanoplatelets (NPls) have been synthesized by a two-step cation exchange method, which starts with the InS NPls followed by the addition of Cu and Zn. It is the first time that InS NPls are used as templates to synthesize ZCIS NPls. In this paper, the reaction temperature of InS is essential for the formation of NPls. The photoluminescence wavelength of NPls can be tuned by adjusting the temperature of Cu addition. To enhance the stability of the resulting NPls and to improve their optical properties, we introduced Zn and obtained ZCIS NPls by cation exchange on the surface. It is worth noting that the obtained ZCIS NPls show a shorter fluorescence lifetime than other ternary copper sulfide-based NPls. This work provides a new way to synthesize high-efficiency, nontoxic, and no byproduct ZCIS NPls.
通过两步阳离子交换法合成了高效光致发光的四元六边形Zn-Cu-In-S（ZCIS）纳米片（NPls），该方法先以InS纳米片为起始材料，随后添加Cu和Zn。这是首次将InS纳米片用作模板来合成ZCIS纳米片。在本文中，InS的反应温度对于纳米片的形成至关重要。通过调节添加Cu时的温度，可以调整纳米片的光致发光波长。为了提高所得纳米片的稳定性并改善其光学性质，我们引入了Zn，并通过表面阳离子交换获得了ZCIS纳米片。值得注意的是，所获得的ZCIS纳米片的荧光寿命比其他基于三元硫化铜的纳米片更短。这项工作为合成高效、无毒且无副产物的ZCIS纳米片提供了一种新方法。
