Many congratulations to Jinshuai, who successfully defended his PhD thesis in November, 2020. Jinshuai's thesis is titled "Synthesis and Optoelectronic Study of Geometry-Confined Lead Halide Perovskite Monocrystalline Thin Films". Jinshuai was funded by a CSC-QMUL PhD studentship and was supervised by Dr Lei Su and Prof Martin Knight. During his PhD, Jinshuai has developed a new method to grow nanometre-resolution surface patterns on single-crystal perovskite thin films. Jinshuai has accepted a PDRA position in a top institution in China and will continue working on this topic.