| Autor: |
I Teng Cheong, Josef Mock, Maria Kallergi, Elisabeth Groß, Alkiviathes Meldrum, Bernhard Rieger, Markus Becherer, Jonathan G. C. Veinot |
| Rok vydání: |
2022 |
| Popis: |
Luminescent colloidal silicon quantum dots (SiQDs) have been explored as alternatives to metal-based QDs for light-emitting diodes (LEDs) because of the abundance and biocompatibility of silicon. To date, the broad electroluminescence (EL) bandwidth (> 100 nm) and blue-shifting of EL at high applied voltages of SiQD-LEDs have been outstanding challenges that limited competitive spectral purity and device stability. Herein, we report the fabrication and testing of SiQD-LEDs that incorporate a Fabry-Pérot cavity that exhibit a narrow spectral linewidth as low as ca. 23 nm. The presented devices also provide spectral and visual stability from +4 V to +8 V, as well as spectral tunability. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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