Structural properties of sputtered ZnO: Au films

Goldenblum, A.; Teodorescu, V. S.; Wagner, F. E.; Mănăilă, R.; Filoti, G.; Deville, J.P.; Pantelică, D.; Negoiţă, F.; Belu-Marian, A.; Scantee, N.

doi:10.1080/01418610208240004

Cited by 4 publications

(3 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The value of n was relatively constant (∼2.75) between 350 and 550 nm, but then it abruptly fell to ∼0.25 at and above 600 nm. The value of k increased sharply (from ∼0.6–0.8 to ∼1.0–1.4) in the same region of the spectrum, consistent with an adsorption edge at these values …”

Section: Resultssupporting

confidence: 65%

Determination of the Wavelength-Dependent Refractive Index of a Gold-Oxide Thin Film

Cook

Ferguson

2011

J. Phys. Chem. C

View full text Add to dashboard Cite

Section: Resultssupporting

confidence: 65%

Determination of the Wavelength-Dependent Refractive Index of a Gold-Oxide Thin Film

Cook

Ferguson

2011

J. Phys. Chem. C

View full text Add to dashboard Cite

“…16 Besides these vibrational peaks, a prominent LO mode is expected around 1100-1150cm −1 . 23,24,25,26 The position of this peak in G1 is at 1095cm −1 (fig 3A). Peak width and shifts indicates the size of the nano-crystals.…”

Section: B Optical Studiesmentioning

confidence: 92%

Characterization of ZnO:Si nanocomposite films grown by thermal evaporation

Siddiqui¹,

Kant²,

Arun³

et al. 2008

Physics Letters A

View full text Add to dashboard Cite

Nanocomposite thin films of Zinc Oxide and Silicon were grown by co-evaporating powdered ZnO and Si. This resulted in nanocrystallites of ZnO being embedded in Silicon. The mismatch in crystal structures of constituent materials result in the ZnO nanocrystals to exist in a state of stress. This along with oxygen vacancies in the samples result in good Photoluminescence emission at 520nm. Also, Silicon background gave a photoluminescence emission at 620nm. The structure was found quite stable over time since the homgenously dispersed ZnO nanocrystals do not agglomerate. The nanocomposites promises to be a useful candidate for future optoelectronic devices.

show abstract

“…17 The work function of Au and ZnO¯lm is 5.1 eV and 5.3 eV, respectively. From the ZnOÀAu interface observations, Au enters as an interstitial atom into the ZnO lattice and¯lls the oxygen vacancies, 23 as the result, the defect structure is changed from ZnÀO to AuÀO band. 20 As previously reported, 21,22 the atomic and electronic structures of ZnO include native defects, i.e.…”

Section: Model Of Active Electronic/ Photonic Energy Via Surface Plasmentioning

confidence: 99%

EXCITATION COUPLING OF Au/ZnO BAND-GAP ENERGY FOR ENHANCING THE PERFORMANCE OF SURFACE PLASMON RESONANCE BIOSENSOR

Chiu

Lin

2013

Biomed. Eng. Appl. Basis Commun.

View full text Add to dashboard Cite

This paper reports a novel design of a surface plasmon resonance (SPR) device that can be developed into a highperformance biosensor. The design utilizes wurtzite crystal structure semiconductor (zinc oxide, ZnO) layers to enhance the SPR signal quality and to improve the full width at half maximum (FWHM) of the SPR re°ectivity curve. There exists a new mechanism when the excitation in the plasmon energy is in resonance with the ZnO band-gap (BG) energy transfer process. The excitation energy between Au and ZnO causes an interactive, coupled phenomenon with the ZnO BG ( BG ¼ 360À430 nm, 3.1À3.4 eV) when it matches the ZnOÀAu interface surface plasmon (400 nm). We have optimized the design of the ZnO and Au thin¯lms thicknesses through analytical comparisons with conventional SPR structures. Upon exposure to ethanol, the ZnOÀAu device showed a 2-times decrease in the FWHM and a 4.5-times larger shift in intensity interrogation. The ZnOÀAu device exhibits a wider linearity range and very higher sensitivity. This characteristic of the ZnOÀAu device is the basis for realizing accurate and speci¯c biomolecular detection.

show abstract

Structural properties of sputtered ZnO: Au films

Cited by 4 publications

References 7 publications

Determination of the Wavelength-Dependent Refractive Index of a Gold-Oxide Thin Film

Determination of the Wavelength-Dependent Refractive Index of a Gold-Oxide Thin Film

Characterization of ZnO:Si nanocomposite films grown by thermal evaporation

EXCITATION COUPLING OF Au/ZnO BAND-GAP ENERGY FOR ENHANCING THE PERFORMANCE OF SURFACE PLASMON RESONANCE BIOSENSOR

Contact Info

Product

Resources

About