Тип публикации: статья из журнала
Год издания: 2021
Идентификатор DOI: 10.1016/j.isci.2021.102250
Ключевые слова: inorganic chemistry, optical materials, photonics
Аннотация: Near-infrared (NIR) phosphor-converted light-emitting diode (pc-LED) has great potential in non-invasive detection, while the discovery of tunable broadband NIR phosphor still remains a challenge. Here, we report that Cr3+-activated LiIn2SbO6 exhibits a broad emission band ranging from 780 to 1400 nm with a full width at half maximПоказать полностьюum (FWHM) of 225 nm upon 492 nm excitation. The emission peaks are tuned from 970 to 1020 nm together with considerable broadening of FWHM (∼285 nm) via Li/Na substitution. Depending on Yb3+ co-doping, a stronger NIR fluorescence peak of Yb3+ appears with improved thermal resistance, which is ascribed to efficient energy transfer from Cr3+ to Yb3+. An NIR pc-LED package has been finally designed and demonstrated a remarkable ability to penetrate pork tissues (∼2 cm) so that the insertion depth of a needle can be observed, indicating that the phosphor can be applied in non-destructive monitoring. © 2021 The Author(s)Inorganic Chemistry; Optical Materials; Photonics © 2021 The Author(s)
Журнал: iScience
Выпуск журнала: Vol. 24, Is. 4
Номера страниц: 102250
ISSN журнала: 25890042
Издатель: Elsevier Inc.