0439239 - ÚACH 2015 RIV GB eng J - Journal Article
Cerdán, L. - Braborec, Jakub - Gracia-Moreno, I. - Costela, A. - Londesborough, Michael Geoffrey Stephen
A borane laser.
Nature Communications. Roč. 6, JAN (2015), s. 2-7. E-ISSN 2041-1723
R&D Projects: GA ČR(CZ) GAP207/11/1577
Institutional support: RVO:61388980
Keywords : Physical sciences * Optical physics * Physical chemistry * 18H22 * Cluster
Subject RIV: CA - Inorganic Chemistry
Impact factor: 11.329, year: 2015

Emission from electronically excited species forms the basis for an important class of light sources—lasers. So far, commercially available solution-processed blue-emitting laser materials are based on organic compounds or semiconductor nanocrystals that have significant limitations: either low solubility, low chemical- and/or photo-stability and/or uncompetitive prices. Here we report a novel and competitive alternative to these existing laser materials that is based on boron hydrides, inorganic cluster compounds with a rich and diverse chemistry. We demonstrate that solutions of the borane anti-B18H22 show, under pulsed excitation, blue laser emission at 406 nm with an efficiency (ratio of output/input energies) of 9.5%, and a photostability superior to many of the commercially available state-of-the-art blue laser dyes. This demonstration opens the doors for the development of a whole new class of laser materials based on a previously untapped resource for laser technology—the boranes.
Permanent Link: http://hdl.handle.net/11104/0242606