Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
UV-induced defect formation in cubic ZrO2. Optical demonstration of Y, Yb and Er dopants interacting with photocarriers. / Khabibrakhmanov, Ruslan; Shurukhina, Anna; Rudakova, Aida; Barinov, Dmitrii; Ryabchuk, Vladimir; Emeline, Alexei; Kataeva, Galina; Serpone, Nick.
в: Chemical Physics Letters, Том 742, 137136, 03.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - UV-induced defect formation in cubic ZrO2. Optical demonstration of Y, Yb and Er dopants interacting with photocarriers
AU - Khabibrakhmanov, Ruslan
AU - Shurukhina, Anna
AU - Rudakova, Aida
AU - Barinov, Dmitrii
AU - Ryabchuk, Vladimir
AU - Emeline, Alexei
AU - Kataeva, Galina
AU - Serpone, Nick
PY - 2020/3
Y1 - 2020/3
N2 - The UV-induced photocoloration of cubic zirconia (c-ZrO2) stabilized by Y2O3, Yb2O3 and Er2O3 and treated as a wide bandgap metal oxide (MO2) heavily doped with M3+ ions has been examined by diffuse reflectance spectroscopy. Using the narrow f-f absorption bands of optically labeled Yb3+ and Er3+ as the M3+ dopants, the interaction of these dopant ions with photocarriers is demonstrated spectroscopically against a non-resolved broadband background. The latter occurs as a result of an offset of specific f-f absorption bands following conversion of M3+ ions into optically silent M2+ ions by the trapping of photoelectrons or by a change of the local symmetry of the M3+ surroundings caused by the UV-induced formation of color centers.
AB - The UV-induced photocoloration of cubic zirconia (c-ZrO2) stabilized by Y2O3, Yb2O3 and Er2O3 and treated as a wide bandgap metal oxide (MO2) heavily doped with M3+ ions has been examined by diffuse reflectance spectroscopy. Using the narrow f-f absorption bands of optically labeled Yb3+ and Er3+ as the M3+ dopants, the interaction of these dopant ions with photocarriers is demonstrated spectroscopically against a non-resolved broadband background. The latter occurs as a result of an offset of specific f-f absorption bands following conversion of M3+ ions into optically silent M2+ ions by the trapping of photoelectrons or by a change of the local symmetry of the M3+ surroundings caused by the UV-induced formation of color centers.
KW - Optically labeled dopants
KW - Photocatalysts
KW - Rare-earth ions
KW - UV-coloration
KW - Zirconium dioxide
KW - UP-CONVERSION
KW - PHOTOLUMINESCENCE
KW - DIOXIDE
KW - SURFACE-REACTIONS
KW - OXYGEN
KW - IRRADIATION
KW - YTTRIA-STABILIZED ZIRCONIA
KW - X-RAY
KW - ABSORPTION
KW - GAP METAL-OXIDE
UR - http://www.scopus.com/inward/record.url?scp=85078476502&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/d40902ee-198b-353a-843b-0d7d0c8a75c5/
U2 - 10.1016/j.cplett.2020.137136
DO - 10.1016/j.cplett.2020.137136
M3 - Article
AN - SCOPUS:85078476502
VL - 742
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
M1 - 137136
ER -
ID: 51232436