I am a 3rd-year PhD student from Prof Xinhui Lu’s group at the Department of Physics, CUHK. My research focuses on using X-ray and neutron scattering techniques to study the active layer morphology of organic optoelectronic devices, including photovoltaics and photodetectors. In collaboration with the China Spallation Neutron Source (CSNS), I have previously applied grazing-incidence small-angle neutron scattering (GISANS) for thin film characterization. I have also used transmission-mode small-angle neutron scattering (SANS) to study the assembly of conjugated polymers in precursor solutions.