Mechanisms in photoluminescence enhancement of ZnO nanorod arrays by the localized surface plasmons of Ag nanoparticles

Bian, Juncao; Yang, Fei; Li, Zhe; Zeng, Jie-Liang; Zhang, Xiwen; Chen, Zhongdong; Tan, Jeannie Z. Y.; Peng, Rui-Qun; He, Hong; Wang, Juan

doi:10.1016/j.apsusc.2012.05.046

Cited by 26 publications

(22 citation statements)

References 29 publications

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“…A number of hybrid material systems that are composed of oxide semiconductor nanostructures decorated with plasmonic metal nanocrystals have been prepared . Two preparation methods have been commonly employed.…”

Section: Preparation Of (Plasmonic Metal)/semiconductor Hybrid Nanostmentioning

confidence: 99%

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Metal/Semiconductor Hybrid Nanostructures for Plasmon‐Enhanced Applications

et al. 2014

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Hybrid nanostructures composed of semiconductor and plasmonic metal components are receiving extensive attention. They display extraordinary optical characteristics that are derived from the simultaneous existence and close conjunction of localized surface plasmon resonance and semiconduction, as well as the synergistic interactions between the two components. They have been widely studied for photocatalysis, plasmon-enhanced spectroscopy, biotechnology, and solar cells. In this review, the developments in the field of (plasmonic metal)/semiconductor hybrid nanostructures are comprehensively described. The preparation of the hybrid nanostructures is first presented according to the semiconductor type, as well as the nanostructure morphology. The plasmonic properties and the enabled applications of the hybrid nanostructures are then elucidated. Lastly, possible future research in this burgeoning field is discussed.

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Section: Preparation Of (Plasmonic Metal)/semiconductor Hybrid Nanostmentioning

confidence: 99%

“…Au/ZnO and Ag/ZnO nanostructures are often made by electrochemical or chemical reduction of Au and Ag salts in the presence of pre‐prepared ZnO nanorods, respectively . They can also be produced by directly immersing ZnO nanorod arrays in Au nanosphere solutions .…”

Section: Preparation Of (Plasmonic Metal)/semiconductor Hybrid Nanostmentioning

confidence: 99%

Metal/Semiconductor Hybrid Nanostructures for Plasmon‐Enhanced Applications

et al. 2014

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“…К сожале-нию, недостатком наноструктур с большой удельной поверхностью являются их метастабильность, а также высокая скорость рекомбинации неравновесных носите-лей заряда. Поэтому более перспективным для детек-тирования УФ и для осуществления ряда фотохимиче-ских реакций, а также для создания газовых сенсоров представляется вариант использования нанокомпозитов ZnO/Ag [9,11,20,21,[26][27][28][29][30][31][32][33]. Согласно [26,28,31], благода-ря возникновению в наночастицах Ag локализованного поверхностного плазмонного резонанса интенсифициру-ется захват света гетероструктурой ZnO/Ag.…”

Section: Discussionunclassified

Структура и свойства электроосажденных в импульсном режиме наноструктурированных массивов ZnO и нанокомпозитов ZnO/Ag на их основе

Kopach¹,

Klepikova²,

Клочко³

et al. 2017

Физика И Техника Полупроводников

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Исследованы структура, морфология поверхности и оптические свойства электроосажденных в импульсном режиме наноструктурированных массивов ZnO, а также осажденных из коллоидных растворов наночастиц Ag и нанокомпозитов ZnO/Ag на их основе. По результатам исследований вольт-амперных и вольт-фарадных характеристик проведен анализ электронных и электрических параметров массивов ZnO и нанокомпозитов ZnO/Ag. Определены оптимальные режимы изготовления стабильных и высокочувствительных по отношению к ультрафиолетовому излучению гетероструктур ZnO/Ag в качестве перспективных материалов фотодетекторов, газовых датчиков и фотокатализаторов. DOI: 10.21883/FTP.2017.03.44206.8303

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“…[17,44] Under the excitation of 325 nm laser,ahigh-density electron cloud in NPs collectively oscillates with the incoming electromagnetic field, yieldingastronger local field than the incident light field. [45,46] The augmented energy density of optical excitation leads to an enhanced excitation rate and al arger quantity of photogenerated electrons in the conduction band, yielding an enhancementi nt he NBE intensity.A ccompanied by the accumulation of electrons close to the junction, as shown in Scheme 2c,t he Fermi level of the ZnO floats up slightly,b ringinga bout as mallb lueshift in the NBE emission. Furthermore, ac loseri nspectiono fF igure 1c suggestst hat many NPs have clear edges insteado fb eing smoothly round.…”

Section: The Optical Properties Of Au/zno Nrsmentioning

confidence: 99%

Full Solution‐Processed Synthesis and Mechanisms of a Recyclable and Bifunctional Au/ZnO Plasmonic Platform for Enhanced UV/Vis Photocatalysis and Optical Properties

Hang

Islam

Chen

et al. 2016

Chemistry A European J

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The synthesis of noble metal/semiconductor hybrid nanostructures for enhanced catalytic or superior optical properties has attracted a lot of attention in recent years. In this study, a facile and all-solution-processed synthetic route was employed to demonstrate an Au/ZnO platform with plasmonic-enhanced UV/Vis catalytic properties while retaining strengthened luminescent properties. The visible-light response of photocatalysis is supported by localized surface plasmon resonance (LSPR) excitations while the enhanced performance under UV is aided by charge separation and strong absorption. The enhancement in optical properties is mainly due to local field enhancement effect and coupling between exciton and LSPR. Luminescent characteristics are investigated and discussed in detail. Recyclability tests showed that the Au/ZnO substrate is reusable by cleaning and has a long shelf life. Our result suggests that plasmonic enhancement of photocatalytic performance is not necessarily a trade-off for enhanced near-band-edge emission in Au/ZnO. This approach may give rise to a new class of versatile platforms for use in novel multifunctional and integrated devices.

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Mechanisms in photoluminescence enhancement of ZnO nanorod arrays by the localized surface plasmons of Ag nanoparticles

Cited by 26 publications

References 29 publications

Metal/Semiconductor Hybrid Nanostructures for Plasmon‐Enhanced Applications

Metal/Semiconductor Hybrid Nanostructures for Plasmon‐Enhanced Applications

Структура и свойства электроосажденных в импульсном режиме наноструктурированных массивов ZnO и нанокомпозитов ZnO/Ag на их основе

Full Solution‐Processed Synthesis and Mechanisms of a Recyclable and Bifunctional Au/ZnO Plasmonic Platform for Enhanced UV/Vis Photocatalysis and Optical Properties

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