Detail publikace

High power deep UV-LEDs for analytical optical instrumentation

Dvořák, M.Li, Y.Nesterenko, N., P.Nuchtavorn, N.Macka, M.

Originální název

High power deep UV-LEDs for analytical optical instrumentation

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Light emitting diodes (LEDs) have been extensively used in portable, LEDs suffer from low optical power and parasitic emissions in the visible wavelength range. Recently, newly developed deep UV-LEDs based on aluminium nitride (AlN) substrates have been introduced claiming improved performance, however there is little in terms of systematic evaluation of their performance parameters when used as light sources in chemical sciences. The aim of this work was to investigate the performance of these new generation deep UV‐LEDs, and assess their analytical applicability. Their emission spectra, optical output power values and energy conversion efficiency (electrical/optical) were investigated. This work shows effects of forward current and voltages on the ratio of intensities of the visible parasitic emission to the desirable deep UV emission. The performance was demonstrated by detection of four parabens separated by miniaturised capillary liquid chromatography.

Klíčová slova

Analytical separations, Deep UV spectral range Light emitting diodes (LEDs), Optical detection, Portable analytical instrumentation

Autoři

Dvořák, M.;Li, Y.;Nesterenko, N., P.;Nuchtavorn, N.;Macka, M.

Vydáno

12. 8. 2017

Nakladatel

Elsevier B.V.

ISSN

0925-4005

Periodikum

Sensors and Actuators B: Chemical

Ročník

255

Číslo

2

Stát

Švýcarská konfederace

Strany od

1238

Strany do

1243

Strany počet

6

URL

http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=5&SID=F1OTMMEOQ5pgg8EQ1pM&page=1&doc=1

BibTex

@article{BUT145859,
  author="Dvořák, M. and Li, Y. and Nesterenko, N., P. and Nuchtavorn, N. and Macka, M.",
  title="High power deep UV-LEDs for analytical optical instrumentation",
  journal="Sensors and Actuators B: Chemical",
  year="2017",
  volume="255",
  number="2",
  pages="1238--1243",
  doi="10.1016/j.snb.2017.08.085",
  issn="0925-4005",
  url="http://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=5&SID=F1OTMMEOQ5pgg8EQ1pM&page=1&doc=1"
}