Photobleaching properties of YVO4

Eu3+ nanophosphors synthesized by hydrothermal treatment

Tetsuhito Muto, Satoru Takeshita, Tetsuhiko Isobe, Tomohiro Sawayama, Seiji Niikura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

When YVO4:Eu3+ nanophosphors synthesized by a low-temperature wet chemical process in the presence of citrate ions are continuously excited by UV light, the photoluminescence (PL) intensity gradually decreases. This photobleaching is accompanied with the reduction of V 5+ to V4+, as confirmed by electron paramagnetic resonance spectroscopy. Hydrothermal treatment of YVO4:Eu3+ nanophosphors in the presence of PO43- ions produces Y(V, P)O 4:Eu3+ through the partial replacement berween VO4 3- and PO43-, and hence results in the increase in the PL intensity and the suppression of photobleaching.

Original languageEnglish
Title of host publicationECS Transactions
Pages135-140
Number of pages6
Volume16
Edition31
Publication statusPublished - 2009
EventPhysics and Chemistry of Luminescent Materials, Including the 4th Symposium on Persistent Phosphors - 214th ECS Meeting - Honolulu, HI, United States
Duration: 2008 Oct 122008 Oct 17

Other

OtherPhysics and Chemistry of Luminescent Materials, Including the 4th Symposium on Persistent Phosphors - 214th ECS Meeting
CountryUnited States
CityHonolulu, HI
Period08/10/1208/10/17

Fingerprint

Photobleaching
Photoluminescence
Ions
Ultraviolet radiation
Paramagnetic resonance
Spectroscopy
Temperature

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Muto, T., Takeshita, S., Isobe, T., Sawayama, T., & Niikura, S. (2009). Photobleaching properties of YVO4: Eu3+ nanophosphors synthesized by hydrothermal treatment. In ECS Transactions (31 ed., Vol. 16, pp. 135-140)

Photobleaching properties of YVO4 : Eu3+ nanophosphors synthesized by hydrothermal treatment. / Muto, Tetsuhito; Takeshita, Satoru; Isobe, Tetsuhiko; Sawayama, Tomohiro; Niikura, Seiji.

ECS Transactions. Vol. 16 31. ed. 2009. p. 135-140.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Muto, T, Takeshita, S, Isobe, T, Sawayama, T & Niikura, S 2009, Photobleaching properties of YVO4: Eu3+ nanophosphors synthesized by hydrothermal treatment. in ECS Transactions. 31 edn, vol. 16, pp. 135-140, Physics and Chemistry of Luminescent Materials, Including the 4th Symposium on Persistent Phosphors - 214th ECS Meeting, Honolulu, HI, United States, 08/10/12.
Muto T, Takeshita S, Isobe T, Sawayama T, Niikura S. Photobleaching properties of YVO4: Eu3+ nanophosphors synthesized by hydrothermal treatment. In ECS Transactions. 31 ed. Vol. 16. 2009. p. 135-140
Muto, Tetsuhito ; Takeshita, Satoru ; Isobe, Tetsuhiko ; Sawayama, Tomohiro ; Niikura, Seiji. / Photobleaching properties of YVO4 : Eu3+ nanophosphors synthesized by hydrothermal treatment. ECS Transactions. Vol. 16 31. ed. 2009. pp. 135-140
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