Environmentally friendly Rb3V5O14 fluorescent red pigment

Sun Woog Kim, Takuya Hasegawa, Mizuki Watanabe, Kazuma Sugimoto, Yu Saito, Kazuyoshi Uematsu, Kenji Toda, Mineo Sato

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Rb3V5O14, which was successfully synthesized by a water assisted solid state reaction (WASSR) method, is a fluorescent red pigment that is environmentally friendly. The Rb3V5O14 fluorescent pigment showed a strong optical absorption in the green light region due to the energy transfer from O2− 2p orbital to V5+ 3d orbital of VO5 polyhedra and band-gap energy of Rb3V5O14 was 2.02 eV. The fluorescent pigment presented a broad red emission peaked at 625 nm due to the 3T2 → 1A1 and 3T1 → 1A1 transitions of the [VO4]3− group. The Rb3V5O14 fluorescent pigment showed a bright-vivid red body color, and the L*, a*, and b* values were 47.4, +45.9, and +34.4, respectively.

Original languageEnglish
Pages (from-to)219-223
Number of pages5
JournalDyes and Pigments
Publication statusPublished - 2017 Jan 1
Externally publishedYes


  • Fluorescent red pigment
  • RbVO
  • Water assisted solid state reaction method

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Process Chemistry and Technology


Dive into the research topics of 'Environmentally friendly Rb3V5O14 fluorescent red pigment'. Together they form a unique fingerprint.

Cite this