On May 16, 2025, Ms. Guoying Yao successfully completed her doctoral dissertation defense in Room B413 at the School of Chemistry, Sun Yat-sen University. The dissertation titled “Theoretical Studies on the Optoelectronic Properties of Two-Dimensional Silane” systematically investigated the regulation mechanisms of optoelectronic properties in two-dimensional silane materials. The defense committee consisted of Professor Zhiji Han (Chair) from Sun Yat-sen University, Assistant Professor Yongqing Cai from University of Macau, Professor Jun He from Guangdong University of Technology, Professor Jiuxing Jiang, Associate Professor Wen Shi, and Associate Professor Yecheng Zhou from Sun Yat-sen University. All members of the research group extend their congratulations to Ms. Guoying Yao and wish her greater achievements in the future!