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2In situ fabricated perovskite quantum dots for photonic
applications
Haizheng Zhong
School of Materials Science & Engineering, Beijing Institute of Technology, China
Perovskite quantum dots (PQDs) are now emerging as functional materials for many photonic applications due to their superior optical properties and easy fabrication. In 2015, we report ligand-assisted reprecipitation (LARP) of brightly luminescent and color tunable perovskite quantum dots. In 2016, we reported the in-situ fabrication of PQDs in polymeric films with high transparency, superior photoluminescence emission and additional processing benefits for down-shifting applications. The potential use of in-situ fabricated PQDs as color converters in LCD backlights was successfully demonstrated, showing bright potential in display technology. Very recently, we developed the in-situ fabricated PQDs patterns for Micro LED and other down conversion applications. In addition, we also demonstrate the use of in-situ fabricated perovskite quantum dots for other applications including UV enhanced silicon photodetectors, photovoltaics, quantum dots based hyperspectrometer, CW laser etc. In all, the in-situ fabricated PQDs provide promising functional materials for many photonic and optoelectronic applications.
Figure 1. In-situ fabrication and ex-situ fabrication of perovskite quantum dots for photonic applications.
