Pd nanoparticle size effects in localized surface plasmon-enhanced diamond photodetectors

Xiaohui Chang; Yan Feng Wang; Haris Naeem Abbasi; Ruozheng Wang; Zhangcheng Liu; Juan Wang; Wangzhen Song; Genqiang Chen; Minghui Zhang; Wei Wang; Kaiyue Wang; Hong Xing Wang

doi:10.1016/j.optmat.2020.110031

Pd nanoparticle size effects in localized surface plasmon-enhanced diamond photodetectors

Xiaohui Chang
, Yan Feng Wang
, Haris Naeem Abbasi
, Ruozheng Wang
, Zhangcheng Liu
, Juan Wang
, Wangzhen Song
, Genqiang Chen
, Minghui Zhang
, Wei Wang
, Kaiyue Wang
, Hong Xing Wang

Faculty of Electronic and Information Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Localized surface plasmon-enhanced diamond UV photodetectors with different diameters of Pd nanoparticles (NPs) had been successfully fabricated. Four Pd NPs with diameters of 20, 40, 60, 70 nm were deposited on diamond surfaces, respectively, and their height was 20 nm. Ti/Ni/Au metal electrodes were patterned on samples surfaces to form UV photodetectors. According to photoelectric performance test results, responsivities were enhanced with sizes of particles increasing at UV region, and diamond photodetector with 40 nm NPs showed the highest photocurrent-to-dark current ratio and UV-to-visible rejection ratio. Compared with pure diamond photodetectors, the responsivity and UV/visible rejection ratio Pd modified detectors can improve up to 3250 and 34 times, respectively. Plasmonic scattering effect was used to explain this phenomenon, and it is further confirmed by the simulated scattering cross-section.

Original language	English
Article number	110031
Journal	Optical Materials
Volume	107
DOIs	https://doi.org/10.1016/j.optmat.2020.110031
State	Published - Sep 2020

Keywords

Diamond UV photodetector
Localized surface plasmon
Pd nanoparticle

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10.1016/j.optmat.2020.110031

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@article{55359634994e4df59d2a4767ebabb079,

title = "Pd nanoparticle size effects in localized surface plasmon-enhanced diamond photodetectors",

abstract = "Localized surface plasmon-enhanced diamond UV photodetectors with different diameters of Pd nanoparticles (NPs) had been successfully fabricated. Four Pd NPs with diameters of 20, 40, 60, 70 nm were deposited on diamond surfaces, respectively, and their height was 20 nm. Ti/Ni/Au metal electrodes were patterned on samples surfaces to form UV photodetectors. According to photoelectric performance test results, responsivities were enhanced with sizes of particles increasing at UV region, and diamond photodetector with 40 nm NPs showed the highest photocurrent-to-dark current ratio and UV-to-visible rejection ratio. Compared with pure diamond photodetectors, the responsivity and UV/visible rejection ratio Pd modified detectors can improve up to 3250 and 34 times, respectively. Plasmonic scattering effect was used to explain this phenomenon, and it is further confirmed by the simulated scattering cross-section.",

keywords = "Diamond UV photodetector, Localized surface plasmon, Pd nanoparticle",

author = "Xiaohui Chang and Wang, \{Yan Feng\} and Abbasi, \{Haris Naeem\} and Ruozheng Wang and Zhangcheng Liu and Juan Wang and Wangzhen Song and Genqiang Chen and Minghui Zhang and Wei Wang and Kaiyue Wang and Wang, \{Hong Xing\}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = sep,

doi = "10.1016/j.optmat.2020.110031",

language = "英语",

volume = "107",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Pd nanoparticle size effects in localized surface plasmon-enhanced diamond photodetectors

AU - Chang, Xiaohui

AU - Wang, Yan Feng

AU - Abbasi, Haris Naeem

AU - Wang, Ruozheng

AU - Liu, Zhangcheng

AU - Wang, Juan

AU - Song, Wangzhen

AU - Chen, Genqiang

AU - Zhang, Minghui

AU - Wang, Wei

AU - Wang, Kaiyue

AU - Wang, Hong Xing

PY - 2020/9

Y1 - 2020/9

N2 - Localized surface plasmon-enhanced diamond UV photodetectors with different diameters of Pd nanoparticles (NPs) had been successfully fabricated. Four Pd NPs with diameters of 20, 40, 60, 70 nm were deposited on diamond surfaces, respectively, and their height was 20 nm. Ti/Ni/Au metal electrodes were patterned on samples surfaces to form UV photodetectors. According to photoelectric performance test results, responsivities were enhanced with sizes of particles increasing at UV region, and diamond photodetector with 40 nm NPs showed the highest photocurrent-to-dark current ratio and UV-to-visible rejection ratio. Compared with pure diamond photodetectors, the responsivity and UV/visible rejection ratio Pd modified detectors can improve up to 3250 and 34 times, respectively. Plasmonic scattering effect was used to explain this phenomenon, and it is further confirmed by the simulated scattering cross-section.

AB - Localized surface plasmon-enhanced diamond UV photodetectors with different diameters of Pd nanoparticles (NPs) had been successfully fabricated. Four Pd NPs with diameters of 20, 40, 60, 70 nm were deposited on diamond surfaces, respectively, and their height was 20 nm. Ti/Ni/Au metal electrodes were patterned on samples surfaces to form UV photodetectors. According to photoelectric performance test results, responsivities were enhanced with sizes of particles increasing at UV region, and diamond photodetector with 40 nm NPs showed the highest photocurrent-to-dark current ratio and UV-to-visible rejection ratio. Compared with pure diamond photodetectors, the responsivity and UV/visible rejection ratio Pd modified detectors can improve up to 3250 and 34 times, respectively. Plasmonic scattering effect was used to explain this phenomenon, and it is further confirmed by the simulated scattering cross-section.

KW - Diamond UV photodetector

KW - Localized surface plasmon

KW - Pd nanoparticle

UR - https://www.scopus.com/pages/publications/85086400080

U2 - 10.1016/j.optmat.2020.110031

DO - 10.1016/j.optmat.2020.110031

M3 - 文章

AN - SCOPUS:85086400080

SN - 0925-3467

VL - 107

JO - Optical Materials

JF - Optical Materials

M1 - 110031

ER -

Pd nanoparticle size effects in localized surface plasmon-enhanced diamond photodetectors

Abstract

Keywords

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