Photoluminescence of Cu:ZnS, Ag:ZnS, and Au:ZnS nanoparticles applied in Bio-LED

Kuan Bo Lin, Yen-Hsun Su

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In this work, transition elements, including Cu2+, Ag +, and Au3+, were used to dope in zinc sulfide (ZnS) by chemical solution synthesis to prepare Cu:ZnS, Ag:ZnS, and Au:ZnS nanoparticles, respectively. Transition elements doping ZnS nanoparticles form the electronic energy level between the conduction band and valance band, which will result in the green light emission. There is a zinc sulfide emission shift from blue (∼3.01 eV) to green light (∼2.15 eV). We also found that Au:ZnS nanoparticles will emit a green light (∼2.3 eV) and a blue light (∼2.92 eV) at the same time because the mechanism of blue light emission was not broken after Au element had been doped. Furthermore, we used sodium chlorophyllin copper salt to simulate chlorophyll in biological light emission devices (Bio-LED). We combined copper chlorophyll with Cu:ZnS, Ag:ZnS, and Au:ZnS nanoparticles by a self-assembly method. Then, we measured its photoluminescence spectroscopy and X-ray photoelectron spectroscopy to study its emission spectrum and bonding mode. We found that Au:ZnS nanoparticles are able to emit green and blue light to excite the red light emission of copper chlorophyll, which is a potential application of Bio-LED.

Original languageEnglish
Pages (from-to)351-359
Number of pages9
JournalApplied Physics B: Lasers and Optics
Volume113
Issue number3
DOIs
Publication statusPublished - 2013 Dec 1

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zinc sulfides
light emission
photoluminescence
nanoparticles
chlorophylls
copper
transition metals
self assembly
conduction bands
emission spectra
energy levels
sodium
photoelectron spectroscopy
salts

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

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title = "Photoluminescence of Cu:ZnS, Ag:ZnS, and Au:ZnS nanoparticles applied in Bio-LED",
abstract = "In this work, transition elements, including Cu2+, Ag +, and Au3+, were used to dope in zinc sulfide (ZnS) by chemical solution synthesis to prepare Cu:ZnS, Ag:ZnS, and Au:ZnS nanoparticles, respectively. Transition elements doping ZnS nanoparticles form the electronic energy level between the conduction band and valance band, which will result in the green light emission. There is a zinc sulfide emission shift from blue (∼3.01 eV) to green light (∼2.15 eV). We also found that Au:ZnS nanoparticles will emit a green light (∼2.3 eV) and a blue light (∼2.92 eV) at the same time because the mechanism of blue light emission was not broken after Au element had been doped. Furthermore, we used sodium chlorophyllin copper salt to simulate chlorophyll in biological light emission devices (Bio-LED). We combined copper chlorophyll with Cu:ZnS, Ag:ZnS, and Au:ZnS nanoparticles by a self-assembly method. Then, we measured its photoluminescence spectroscopy and X-ray photoelectron spectroscopy to study its emission spectrum and bonding mode. We found that Au:ZnS nanoparticles are able to emit green and blue light to excite the red light emission of copper chlorophyll, which is a potential application of Bio-LED.",
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Photoluminescence of Cu:ZnS, Ag:ZnS, and Au:ZnS nanoparticles applied in Bio-LED. / Lin, Kuan Bo; Su, Yen-Hsun.

In: Applied Physics B: Lasers and Optics, Vol. 113, No. 3, 01.12.2013, p. 351-359.

Research output: Contribution to journalArticle

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