Benchmarking the dynamic luminescence properties and UV stability of B18H22-based materials

Kierstyn P. Anderson; Ash Sueh Hua; John B. Plumley; Austin D. Ready; Arnold L. Rheingold; Thomas L. Peng; Peter I. Djurovich; Christopher Kerestes; Neil A. Snyder; Andrew Andrews; Justin R. Caram; Alexander M. Spokoyny

doi:10.1039/D2DT01225A

Benchmarking the dynamic luminescence properties and UV stability of B₁₈H₂₂-based materials†

Kierstyn P. Anderson,

^a Ash Sueh Hua,^a John B. Plumley,^bc Austin D. Ready,^a Arnold L. Rheingold,^d Thomas L. Peng,^b Peter I. Djurovich,

^e Christopher Kerestes,^b Neil A. Snyder,^f Andrew Andrews,^f Justin R. Caram

*^a and Alexander M. Spokoyny

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry and Biochemistry and California NanoSystems Institute (CNSI), University of California, Los Angeles, 90095, California, USA
E-mail: spokoyny@chem.ucla.edu, jcaram@chem.ucla.edu

^b Space Vehicles Directorate, Air Force Research Laboratory, Kirtland AFB, New Mexico 87117, USA

^c Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, New Mexico 87106, USA

^d Department of Chemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California, USA

^e USA Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA

^f BlueHalo, Albuquerque, New Mexico 87110, USA

Abstract

The dynamic photoluminescence properties, and potential quenching mechanisms, of anti-B₁₈H₂₂, 4,4′-Br₂-anti-B₁₈H₂₀, and 4,4′-I₂-anti-B₁₈H₂₀ are investigated in solution and polymer films. UV stability studies of the neat powders show no decomposition occurring after intense 7 day light soaking. In contrast, clusters incorporated into polymer films are found to degrade into smaller borane fragments under the same irradiation conditions. To highlight the utility of these compounds, we leverage their favorable optical properties in a prototype UV imaging setup.

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Benchmarking the dynamic luminescence properties and UV stability of B₁₈H₂₂-based materials†

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