| 초록 |
All-inorganic halide perovskites have been attracting attention for potential use in solid-state lighting. Particularly, perovskite nanocrystals (NCs) and quantum dots (QDs) attract significant interest in recent years because of their superior properties for optoelectronic devices unlike those of perovskite bulk films. Here, we demonstrate two types of solution-processed light-emitting diodes (LEDs) with the colloidal CsPbBr3 NCs and QDs, respectively. It is noted that all the LEDs were processed using the spin-coating method under air ambient conditions, except for the electrode depositions. The LEDs with QDs represented superior electroluminescent efficiency that those with NCs. In addition, a systematic studies on the structural, morphological, and optoelectronic properties of CsPbBr3 was carried out. Consequently, these findings suggest that, with feasible degrees of device performance, the perovskite NCs⁄QDs hold great promise for their use in LED lighting and displays. |
