CdSe/ZnS core-shell QDs (523 nm) were used as emissive layers, poly-TPD as hole-transport layer (HTL) and ZnO as electron-transport layer(ETL). Green-emitting devices based on CdSe QDs were fabricated and characterized. Luminescence of semiconductor nanocrystal quantum dots (QDs) were used as luminescent centers in organic light emitting devices (OLEDs). By changing the size of QD, this OLED can emit visible to near-infrared spectrum with a narrow full-width at half-maximum (FWHM) of ~30 nm. However, the brightness, efficiency, and lifetime of LEDs need to be improved to meet the requirements of commercialization in the near future.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics