Ultraviolet amplified spontaneous emission from zinc oxide ridge waveguides on silicon substrate

Yu, Siu Fung; Yuen, Clement; Lau, Shu Ping; Wang, Y. G.; Lee, H. W.; Tay, Beng Kang

doi:10.1063/1.1629784

Cited by 59 publications

(46 citation statements)

References 11 publications

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“…This is because the silicon substrate allows the integration of II-VI optoelectronics with silicon-based electronics, but in addition, a silicon substrate is cheaper and easier to cleave than that of sapphire. Therefore, the successful deposition of device quality ZnO thin films on silicon substrates lead to the mass production of UV integrated optoelectronics [6]. The work reported on the effect of surface microstructure on structure, optical, and luminescence properties is meager.…”

Section: Introductionmentioning

confidence: 99%

“…It is a wide direct band gap (3.32 eV) material and finds applications in fabrication of transparent conducting oxides for flat panel displays and solar cells [1], and thin film transistors [2,3]. Moreover, ZnO acts as good sensor in detecting various gases [4,5] and also acts as optical wave guide [6]. Thin films of ZnO were deposited by various physical [7][8][9][10] and chemical techniques [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Physical investigations on pulsed laser deposited nanocrystalline ZnO thin films

et al. 2012

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The nanocrystalline ZnO thin films were deposited by pulsed laser deposition on quartz and i-Si (100) substrates at different substrate temperatures (473 K-873 K) and at different mixed partial pressures (0.05, 0.01, and 0.5 mbar) of Ar + O 2 . The structural studies from XRD spectra reveals that the films deposited at 0.05 mbar and at lower substrate temperatures were c-axis oriented with predominant (002) crystallographic orientation. At 873 K along with (002) orientation, additional crystallographic orientations were also observed in case of films deposited at 0.01 and 0.5 mbar pressures. The composition of Zinc and Oxygen in ZnO films from EDAX reveals that the films deposited at lower partial pressures were have high at.% of O 2 whereas higher partial pressures and substrate temperatures had high at.% Zn. The surface microstructure of the films show that the films deposited at lower partial pressures (0.05 mbar ) and at lower substrate temperatures (473 K) were found to have nanoparticles of size 15 nm where as films deposited at 873 K have nanorods. The length of these nanorods increases with increasing Ar + O 2 partial pressure to 0.5 mbar. The optical energy gap of the film deposited at lower partial pressure and substrate temperature was 3.3 eV and decrease with the increase of substrate temperatures. The films deposited at 0.5 mbar and at 873 K emitted an intense luminescence at a wavelength of 390 nm. The mea-K. Srinivasarao ( ) · K. Pandurangarao Post graduate department of Physics, P.G. Centre, P.B. Siddartha

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physical investigations on pulsed laser deposited nanocrystalline ZnO thin films

et al. 2012

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“…ZnO also exhibits strong piezoelectric and pyroelectric properties and is ideally suitable for applications in sensors and actuators [10] . The electrical, optoelectronic, and photochemical properties of ZnO have resulted in its use for solar cells, transparent electrodes, and blue/UV light emitting devices [9,11] . The unique semiconducting and piezoelectric dual properties of ZnO may also be exploited for applications in mechanical energy and electrical power conversion.…”

Section: Introductionmentioning

confidence: 99%

Low temperature doping of ZnO nanostructures

Cui

Thomas

Kandel

et al. 2009

Sci. China Ser. E-Technol. Sci.

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Doping of ZnO nanostructures was investigated by using a low temperature electrochemical process. Various dopant materials have been studied, including transition metals, group I, and group VII elements. The structure, composition, and optical properties of the doped ZnO nanostructures were analyzed by scanning electron microscopy, energy dispersive X-ray spectroscopy, photoluminescence, and x-ray diffraction. It was demonstrated that dopant elements were incorporated into the ZnO structures. The effects of dopant incorporation on the structure and properties of ZnO were also investigated. This low temperature approach is compatible with current micro-fabrication techniques and promising for largescale production of doped ZnO nanostructures for optical and electronic applications.zinc oxide, nanowires, doping

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“…Hierarchical structures such as nanotubes and nanowires [115] or ZnO nanoplate-nanowire architectures [116] have been studied as new directions for integrated device applications. In recent years, the ASE has been investigated in ZnO powders and patterned films as well with incoherent and coherent feedback in the gain media [117,118]. UV laser of ZnO has been observed in powder, thin-film, and nanowire samples based on the positive feedback in random and Fabry-Pérot cavities [119][120][121].…”

Section: Lasing Action In Znomentioning

confidence: 99%

Zinc Oxide Nanophotonics

Choi

Aharonovich

2015

Nanophotonics

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Abstract:The emerging field of nanophotonics initiated a dedicated study of single photon sources and optical resonators in new class of materials. One such material is zinc oxide (ZnO) that has been long considered only for classical light-emitting applications. However, it recently showed promise for quantum photonics technologies. In this review, we highlight the recent advances in studying single emitters in ZnO, engineering of optical cavities and practical nanophotonics devices including nanolasers and electrically triggered devices. We finalize with an outlook at this promising area, as well as provide perspectives and open questions in solid state nanophotonics employing ZnO.

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Ultraviolet amplified spontaneous emission from zinc oxide ridge waveguides on silicon substrate

Cited by 59 publications

References 11 publications

Physical investigations on pulsed laser deposited nanocrystalline ZnO thin films

Physical investigations on pulsed laser deposited nanocrystalline ZnO thin films

Low temperature doping of ZnO nanostructures

Zinc Oxide Nanophotonics

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