The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite
We performed the investigation of the polarization-sensitive photocurrent generated in silver-palladium metal-semiconductor nanocomposite films under irradiation with nanosecond laser pulses at the wavelength of 2600 nm. It is shown that in both the transverse and the longitudinal configuration, the...
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2021
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oai:doaj.org-article:51abbd5b3ff74f128e612858aa5d8c842021-11-25T18:30:07ZThe Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite10.3390/nano111128272079-4991https://doaj.org/article/51abbd5b3ff74f128e612858aa5d8c842021-10-01T00:00:00Zhttps://www.mdpi.com/2079-4991/11/11/2827https://doaj.org/toc/2079-4991We performed the investigation of the polarization-sensitive photocurrent generated in silver-palladium metal-semiconductor nanocomposite films under irradiation with nanosecond laser pulses at the wavelength of 2600 nm. It is shown that in both the transverse and the longitudinal configuration, the surface photogalvanic (SPGE) and photon drag effects (PDE) contribute to the observed photocurrent. However, the temporal profile of the transverse photocurrent pulse is monopolar at any polarization and angle of incidence, while the temporal profile of the longitudinal photocurrent pulse depends on the polarization of the excitation beam. Specifically, the irradiation of the film with the <i>s</i>-polarized excitation beam produces a monopolar photoresponse, while at <i>p</i>-polarized excitation, the photoresponse is bipolar, having a short front and long tail. Obtained experimental results are in agreement with the developed phenomenological theory, which describes transverse and longitudinal photocurrents due to SPGE and PDE in terms of relevant second-order nonlinear susceptibilities and allows us to obtain their dependences on the angle of incidence and polarization of the excitation laser beam. The pronounced dependence of the photocurrent on the angle of incidence and polarization of the excitation beam opens avenues toward the development of polarization- and position-sensitive detectors for industrial and space applications.Aleksandr S. SaushinGennady M. MikheevViatcheslav V. VanyukovYuri P. SvirkoMDPI AGarticlephoton drag effectsurface photogalvanic effectmetal-semiconductor nanocompositepolarizationphotocurrentmid-IR excitationChemistryQD1-999ENNanomaterials, Vol 11, Iss 2827, p 2827 (2021) |
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photon drag effect surface photogalvanic effect metal-semiconductor nanocomposite polarization photocurrent mid-IR excitation Chemistry QD1-999 |
spellingShingle |
photon drag effect surface photogalvanic effect metal-semiconductor nanocomposite polarization photocurrent mid-IR excitation Chemistry QD1-999 Aleksandr S. Saushin Gennady M. Mikheev Viatcheslav V. Vanyukov Yuri P. Svirko The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite |
description |
We performed the investigation of the polarization-sensitive photocurrent generated in silver-palladium metal-semiconductor nanocomposite films under irradiation with nanosecond laser pulses at the wavelength of 2600 nm. It is shown that in both the transverse and the longitudinal configuration, the surface photogalvanic (SPGE) and photon drag effects (PDE) contribute to the observed photocurrent. However, the temporal profile of the transverse photocurrent pulse is monopolar at any polarization and angle of incidence, while the temporal profile of the longitudinal photocurrent pulse depends on the polarization of the excitation beam. Specifically, the irradiation of the film with the <i>s</i>-polarized excitation beam produces a monopolar photoresponse, while at <i>p</i>-polarized excitation, the photoresponse is bipolar, having a short front and long tail. Obtained experimental results are in agreement with the developed phenomenological theory, which describes transverse and longitudinal photocurrents due to SPGE and PDE in terms of relevant second-order nonlinear susceptibilities and allows us to obtain their dependences on the angle of incidence and polarization of the excitation laser beam. The pronounced dependence of the photocurrent on the angle of incidence and polarization of the excitation beam opens avenues toward the development of polarization- and position-sensitive detectors for industrial and space applications. |
format |
article |
author |
Aleksandr S. Saushin Gennady M. Mikheev Viatcheslav V. Vanyukov Yuri P. Svirko |
author_facet |
Aleksandr S. Saushin Gennady M. Mikheev Viatcheslav V. Vanyukov Yuri P. Svirko |
author_sort |
Aleksandr S. Saushin |
title |
The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite |
title_short |
The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite |
title_full |
The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite |
title_fullStr |
The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite |
title_full_unstemmed |
The Surface Photogalvanic and Photon Drag Effects in Ag/Pd Metal-Semiconductor Nanocomposite |
title_sort |
surface photogalvanic and photon drag effects in ag/pd metal-semiconductor nanocomposite |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/51abbd5b3ff74f128e612858aa5d8c84 |
work_keys_str_mv |
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