One-pot synthesis of red light-emitting CdTexSe(1−x) quantum dots for light-emitting diode application
Red light-emitting CdTe x Se (1− x ) quantum dots (QDs) were synthesized as a new red phosphor for light-emitting diodes. CdTe x Se (1− x ) QDs were characterized through X-ray diffraction, high-resolution transmission electron microscopy, photoluminescence spectroscopy, and UV–Vis absorption spectr...
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| Veröffentlicht in: | Applied physics. A, Materials science & processing Materials science & processing, 2021-05, Vol.127 (5), Article 309 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Red light-emitting CdTe
x
Se
(1−
x
)
quantum dots (QDs) were synthesized as a new red phosphor for light-emitting diodes. CdTe
x
Se
(1−
x
)
QDs were characterized through X-ray diffraction, high-resolution transmission electron microscopy, photoluminescence spectroscopy, and UV–Vis absorption spectroscopy. Results revealed that red-emitting CdTe
x
Se
(1−
x
)
QDs were highly crystalline and had good optical properties. A red LED device was fabricated by combining red light-emitting CdTe
x
Se
(1−
x
)
QDs as the phosphor with a near-UV InGaN LED chip as the excitation source. The CIE color coordinates of the red LED at (0.6778 and 0.3106) when the reflux time was 1 h. Therefore, CdTe
x
Se
(1−
x
)
QDs are good candidates for LED applications. |
|---|---|
| ISSN: | 0947-8396 1432-0630 |
| DOI: | 10.1007/s00339-021-04440-w |