Enhancement of emission from ZnO nanobelts via surface plasmons

Yan-Dong, Ren; Shu-Juan, Hao; Zhong-Yang, Qiu

doi:10.7498/aps.62.147302

Cited by 5 publications

(1 citation statement)

References 12 publications

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“…The significant enhancement of near band edge ultraviolet (NBEUV) PL and subsequent attenuation in the visible emission after metal nanoparticles decoration on the surface of the ZnO also reported. They also observed that NBEUV PL intensity could be enhanced up to a certain size of metal nanoparticles, beyond that it reduced [15][16][17]. Although they pointed out that the metals decorated on ZnO could significantly modify its optical properties, the understanding of the enhancement and attenuation mechanisms remained under debate.…”

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confidence: 99%

Optical study of Au/Ti/Ni/Mg-nanoparticles decorated zinc oxide heterostructures: size effect induced modulation of work function

Ren¹,

Zhao²,

Yuan³

et al. 2019

J. Phys. D: Appl. Phys.

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The development of the novel semiconductor heterogeneous functional materials is playing an ever more important role in materials and eﬃcient devices with new properties and functions. In this work, heterostructures of Au/Ti/Ni decorated zinc oxide nanobelts were synthesized. The amount and diameter of metal nanoparticles were controlled by the sputtering time or the deposition time. The photoluminescence of metal/ZnO heterostructures has been investigated. Very strong enhancement of near-band-edge emission and simultaneous attenuation of visible emission were observed for ZnO nanobelts decorated with Au, Ti and Ni nanoparticles. But both the NBEUV and DL emission intensities of Ni/ZnO heterostructures decrease dramatically initially. A novel mechanism is proposed to explain observed kinds of experimental results based on characteristic of metal nanoparticles, LSPR, Purcell effects and work function change of nanosize induced. The Mg decorated zinc oxide nanobelts were synthesized for the first time. Then the entire mechanism was testified by the investigation on Mg/ZnO and Ni/ZnO heterostructures due to its much lower and higher work functions compared with that of ZnO nanobelts, respectively. The mechanism will facilitate the technical application of metal-nanoparticles decorated heterostructures, and be very useful for the creation of highly efficient optoelectronic devices.

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confidence: 99%

Optical study of Au/Ti/Ni/Mg-nanoparticles decorated zinc oxide heterostructures: size effect induced modulation of work function

Ren¹,

Zhao²,

Yuan³

et al. 2019

J. Phys. D: Appl. Phys.

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Study of solid solubility of gold doped in ZnO films and its effect on optical properties

Wang

Fan

et al. 2015

2015 International Conference on Optoelectronics and Microelectronics (ICOM)

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Experimental and theoretical study of tris-(8-hydroxyquinoline) aluminum (Alq3) photoluminescence enhanced by self-assembled silver films

叶松¹,

王向贤²,

侯宜栋³

et al. 2014

Acta Phys. Sin.

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Alq3 photoluminescences (PL) enhanced by self-assembled silver films are investigated experimentally and theoretically. The experimental results show that both the apparent enhancement factor (AEF) and the emission enhancement factor (EEF) of Alq3 PL increase with the increase of density of average 70 nm diameter silver nanoparticles on the substrate. The maxima of AEF and EEF are about 3.2 and 13, respectively. Based on the optical antenna theory, the theoretical maxima of both quantum efficiency enhancement factor and EEF of Alq3 PL are about 1.4 and 15, respectively. By comparing of the experimental results with the theoretical results, we can conclude that the near-field enhancement of silver nanoparticles makes a major contribution to Alq3 PL emission enhancement, and the emission enhancement is dependent on the Alq3-silver nanoparticle distance and the area coverage ratio of silver nanoparticles to substrate.

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Enhancement of emission from ZnO nanobelts via surface plasmons

Cited by 5 publications

References 12 publications

Optical study of Au/Ti/Ni/Mg-nanoparticles decorated zinc oxide heterostructures: size effect induced modulation of work function

Optical study of Au/Ti/Ni/Mg-nanoparticles decorated zinc oxide heterostructures: size effect induced modulation of work function

Study of solid solubility of gold doped in ZnO films and its effect on optical properties

Experimental and theoretical study of tris-(8-hydroxyquinoline) aluminum (Alq3) photoluminescence enhanced by self-assembled silver films

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