Beryllium-Free β-Rb2Al2B2O7 as a Possible Deep-Ultraviolet Nonlinear Optical Material Replacement for KBe2BO3F2

T. Thao Tran, Nathan Z. Koocher, James M. Rondinelli*, P. Shiv Halasyamani

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

86 Scopus citations


A new beryllium-free deep-ultraviolet (DUV) nonlinear optical (NLO) material, β-Rb2Al2B2O7 (β-RABO), has been synthesized and characterized. The chiral nonpolar acentric material shows second-harmonic generation (SHG) activity at both 1064 and 532 nm with efficiencies of 2×KH2PO4 and 0.4×β-BaB2O4, respectively, and exhibits a short absorption edge below 200 nm. β-Rb2Al2B2O7 has a three-dimensional structure of corner-shared Al(BO3)3O polyhedra. The discovery of β-RABO shows that through careful synthesis and characterization, replacement of KBe2BO3F2 (KBBF) by a Be-free DUV NLO material is possible.

Original languageEnglish (US)
Pages (from-to)2969-2973
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number11
StatePublished - Mar 6 2017


  • borates
  • nonlinear optics
  • polymorphs
  • second harmonic generation
  • solid-state structures

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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