Published September 21, 2004
| Version v1
Journal article
Concentration enhanced red upconversion in nanocrystalline ZrO2 : Er under IR excitation
- 1. Centro de Investigaciones en Optica A.C., Leon, Gto., C.P. 37000 Mexico (Mexico)
- 2. Instituto Mexicano del Petroleo, Cd. de Mexico, D.F. Mexico 07730 (Mexico)
Description
The effects of Er3+ concentration in ZrO2 on the red (680 nm) and green (545 nm) upconversion emission from Er3+ under near infrared radiation (NIR) excitation (at both 1438 and 962 nm) are presented. For the highest Er3+ concentration used, the red band is almost quenched under VIS (489 nm) excitation, whereas it is enhanced under NIR excitation. Such a difference between photoluminescence and upconversion is explained taking into account the concentration dependent cross-relaxation process (2H11/2 + 4I15/2) → (4I9/2 + 4I13/2). Experimental results suggest that two- and three-photon upconversion processes are taking place under 962 nm and 1438 nm excitation, respectively
Availability note (English)
Available online at http://stacks.iop.org/0022-3727/37/2489/d4_18_004.pdf or at the Web site for the Journal of Physics. D, Applied Physics (ISSN 1361-6463) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0022-3727/37/2489/d4_18_004.pdf; http://www.iop.org/;
- DOI
- 10.1088/0022-3727/37/18/004;
- PII
- S0022-3727(04)81728-5;
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 37
- Journal Issue
- 18
- Journal Page Range
- p. 2489-2495
- ISSN
- 0022-3727
- CODEN
- JPAPBE
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36037291
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
- Descriptors DEI
- CONCENTRATION RATIO; CRYSTAL DOPING; CRYSTALS; ERBIUM IONS; EXCITATION; NANOSTRUCTURES; NEAR INFRARED RADIATION; PHOTOLUMINESCENCE; PHOTONS; RELAXATION; ZIRCONIUM OXIDES
- Descriptors DEC
- BOSONS; CHALCOGENIDES; CHARGED PARTICLES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; EMISSION; ENERGY-LEVEL TRANSITIONS; INFRARED RADIATION; IONS; LUMINESCENCE; MASSLESS PARTICLES; OXIDES; OXYGEN COMPOUNDS; PHOTON EMISSION; RADIATIONS; TRANSITION ELEMENT COMPOUNDS; ZIRCONIUM COMPOUNDS