Blue cooperative upconversion and white light emission from Y2Si2O7 Yb3 nanopowders due to 975 nm infrared excitation
Yazarlar (4)
Prof. Dr. Gonul Eryurek İstanbul Teknik Üniversitesi, Türkiye
Hatun Cinkaya
İstanbul Teknik Üniversitesi, Türkiye
İstanbul Teknik Üniversitesi, Türkiye
Murat Erdem Marmara Üniversitesi, Türkiye
Prof. Dr. Gökhan BİLİR Kafkas Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Journal of Nanophotonics (Q2) | ||
| Dergi ISSN | 1934-2608 Dergi Bilgileri (2016) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 04-2016 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 26-05-2016 |
| Cilt / Sayı / Sayfa | 10 / 2 / 26022–0 | DOI | 10.1117/1.JNP.10.026022 |
| Makale Linki | http://nanophotonics.spiedigitallibrary.org/article.aspx?doi=10.1117/1.JNP.10.026022 | ||
| UAK Araştırma Alanları |
Optik, Fotonik, Fiber Optik
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| Özet |
| We report the luminescence properties of undoped and 10% -doped nanopowders under the infrared excitation of 975-nm laser diode. A broadband white light (WL) emission is observed in the undoped powder, and its intensity becomes stronger with increasing excitation power. A blue emission centered at is observed below the excitation power of in the -doped sample. The blue emission intensity dependence on the excitation power suggests that this emission is a two-photon absorption process known as the cooperative luminescence of ions. When the excitation power is increased above 2 W, a broadband “white” emission extending from blue into the near infrared appears while the blue cooperative emission band of ions disappears. The excitation power dependence of the WL intensity at 758 nm is due to a multiphoton process that may be attributed to the thermal radiation … |
| Anahtar Kelimeler |
| laser spectroscopy | white light emission | Y2Si2O7 | Yb3+ |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 13 |
| Scopus | 11 |
| Google Scholar | 13 |