Lanthanide-activated single-phosphor white light emission via Bi3+ → Eu3+ energy transfer in Ca2Ga2GeO7 for next-generation LEDs
| Title | Lanthanide-activated single-phosphor white light emission via Bi3+ → Eu3+ energy transfer in Ca2Ga2GeO7 for next-generation LEDs |
| Publication Type | Journal Article |
| Year of Publication | 2026 |
| Authors | Chethana, KN, Kanojiya, NS, T.Parayil, R, Sreevalsa, S, Das, S, Mishra, MKumar, Gupta, SK |
| Journal | Materials Letters |
| Volume | 410 |
| Pagination | 140236 |
| Date Published | MAY |
| Type of Article | Article |
| ISSN | 0167-577X |
| Keywords | Bi3+/Eu3+ co-doping, Ca2Ga2GeO7 phosphors, Energy Transfer, UV-excited LEDs, White light emission |
| Abstract | {We report the design and fabrication of Bi3+ and Eu3+ co-doped Ca2Ga2GeO7 (CGGO) phosphors for highperformance warm-white light-emitting diodes (LEDs). The phosphor exhibits efficient Bi3+ -> Eu3+ energy transfer, as evidenced by spectral overlap, enhanced Eu3+ emission, and quenching of Bi3+ emission with increasing Eu3+ content. The emission color shifts from blue to red with increasing Eu3+, achieving near-white emission at 3% Eu3+ (x = 0.33 |
| DOI | 10.1016/j.matlet.2026.140236 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 2.7 |
Divison category:
Physical and Materials Chemistry
Database:
Web of Science (WoS)
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