Realization of a High‐Performance GaN UV Detector by Nanoplasmonic Enhancement

Li, Dabing; Sun, Xiaojuan; Song, Hang; Li, Zhiming; Chen, Yiren; Jiang, Hong; Miao, Guoqing

doi:10.1002/adma.201102585

Cited by 252 publications

(157 citation statements)

References 29 publications

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“…Ahmadivand et al [47] have proposed to use aluminum nanoantennas to enhance the response of a GaN UV detector and, in this way, overcome some of the problems of current UV photodectors [48]. This nanoantenna consists on Al/Al 2 O 3 heptamers with the symmetry of a benzene molecule as Fano-resonant plasmonic nanoclusters.…”

Section: Aluminummentioning

confidence: 99%

Plasmonics in the Ultraviolet with Aluminum, Gallium, Magnesium and Rhodium

et al. 2018

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Ultraviolet plasmonics (UV) has become an active topic of research due to the new challenges arising in fields such as biosensing, chemistry or spectroscopy. Recent studies have pointed out aluminum, gallium, magnesium and rhodium as promising candidates for plasmonics in the UV range. Aluminum and magnesium present a high oxidation tendency that has a critical effect in their plasmonic performance. Nevertheless, gallium and rhodium have drawn a lot of attention because of their low tendency of oxidation and, at the same time, good plasmonic response in the UV and excellent photocatalytic properties. Here, we present a short overview of the current state of UV plasmonics with the latest findings in the plasmonic response and applications of aluminum, gallium, magnesium and rhodium nanoparticles.

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Section: Aluminummentioning

confidence: 99%

Plasmonics in the Ultraviolet with Aluminum, Gallium, Magnesium and Rhodium

et al. 2018

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“…[8][9][10][11] Among these, GaN is of great importance in optoelectronic and short-wavelength devices because of its widebandgap. [12][13][14] GaN has two crystal structures: wurtzite (hexagonal) and zinc-blende (cubic). Hexagonal GaN, as the stable phase of GaN and the mostly employed phase for light emitting diodes, has attracted most of the research efforts.…”

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confidence: 99%

Study of confined coherent acoustic phonon modes in a free-standing cubic GaN membrane by femtosecond spectroscopy

Großmann

Brick

et al. 2015

Applied Physics Letters

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Confined longitudinal coherent acoustic phonon modes are excited and detected in a sub-lm-thick free-standing cubic GaN membrane by femtosecond pump-probe spectroscopy. After fs laser excitation, Brillouin oscillation and thickness oscillation with frequencies up to 100 GHz are observed and studied in the time domain. We found an initial expansion of the membrane upon optical excitation at 400 nm. Our experimental results confirmed earlier existing theoretical predictions and experimental observations that the hydrostatic deformation potential of cubic GaN is positive. V C 2015 AIP Publishing LLC. [http://dx

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“…As a result, more photo-generated electron-hole pairs were generated, leading to enhanced photocurrent. (2) Accelerated separation of electron-hole pairs owning to the enhanced electromagnetic field surrounding the plasmonic HGNs [42], [43], [44]. (3) Direct electron transfer (DET).…”

Section: Resultsmentioning

confidence: 99%