Jinyi's main interests include the study of reionization-era quasars, of the cosmic reionization history, and of early supermassive black holes (SMBHs). She is currently working on a wide-field survey for quasars with redshifts beyond seven, which has yielded the discovery of a new redshift record breaking quasar, and performing the multi-wavelength follow up observations of these distant systems. As a Strittmatter Fellow, she will focus on the investigations of the reionization history at the redshift range z~6-7.5 and the SMBHs growth using a newly constructed z>~7 quasar sample, the first large statistical significant quasar sample in the reionization epoch. In addition, her on-going HST/ALMA and future JWST projects will allow the study of the SMBH-host interaction surrounding the maximally accreting black holes.