Broadband, Plasmon‐Modified SnSe2 Photodetector Based on LNOI Thin‐Film Platform

Abstract Lithium niobate on insulator (LNOI) is widely recognized as an essential optoelectronic integration platform due to its unique ferroelectric properties and photorefractive effect. However, the wide bandgap and weak absorption of lithium niobate limit its further application in integrated ph...

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Main Authors: Yi Liu, Wenqing Sun, Zixu Sa, Fengjing Liu, Feng Ren, Zaixing Yang, Yuechen Jia, Xiaoli Sun, Feng Chen
Format: Article
Language:English
Published: Wiley-VCH 2024-04-01
Series:Advanced Materials Interfaces
Subjects:
Online Access:https://doi.org/10.1002/admi.202301094
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author Yi Liu
Wenqing Sun
Zixu Sa
Fengjing Liu
Feng Ren
Zaixing Yang
Yuechen Jia
Xiaoli Sun
Feng Chen
author_facet Yi Liu
Wenqing Sun
Zixu Sa
Fengjing Liu
Feng Ren
Zaixing Yang
Yuechen Jia
Xiaoli Sun
Feng Chen
author_sort Yi Liu
collection DOAJ
description Abstract Lithium niobate on insulator (LNOI) is widely recognized as an essential optoelectronic integration platform due to its unique ferroelectric properties and photorefractive effect. However, the wide bandgap and weak absorption of lithium niobate limit its further application in integrated photodetection field. To address this issue, encapsulating silver nanoparticles within the LNOI structure are proposed to manipulate the light field distribution of modified lithium niobate through the localized surface plasmon resonance (LSPR) effect and utilize the modified lithium niobate thin film as a functional substrate to tailor the optoelectronic properties of surface SnSe2 nanosheets, significantly enhancing their photodetection capabilities. The photocurrent of the SnSe2 photodetector based on LNOI with embedded Ag nanoparticles is enhanced by up to 1912 times compared to that on the original LNOI under the same conditions, which represents the highest reported plasmonic‐induced photodetection enhancement. This work deepens the basic research on plasmonic‐modified 2D materials and ferroelectric materials, which promotes the development of on‐chip photodetectors and the realization of fully functional photonic circuits that integrate all essential components on a single chip.
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spelling doaj.art-ecbad27232cc4ca9a274e1a75e3e41ea2024-04-06T04:18:59ZengWiley-VCHAdvanced Materials Interfaces2196-73502024-04-011110n/an/a10.1002/admi.202301094Broadband, Plasmon‐Modified SnSe2 Photodetector Based on LNOI Thin‐Film PlatformYi Liu0Wenqing Sun1Zixu Sa2Fengjing Liu3Feng Ren4Zaixing Yang5Yuechen Jia6Xiaoli Sun7Feng Chen8School of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaDepartment of Physics Center for Ion Beam Application and Center for Electron Microscopy Wuhan University Wuhan 430072 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaSchool of Physics State Key Laboratory of Crystal Materials Shandong University Jinan 250100 ChinaAbstract Lithium niobate on insulator (LNOI) is widely recognized as an essential optoelectronic integration platform due to its unique ferroelectric properties and photorefractive effect. However, the wide bandgap and weak absorption of lithium niobate limit its further application in integrated photodetection field. To address this issue, encapsulating silver nanoparticles within the LNOI structure are proposed to manipulate the light field distribution of modified lithium niobate through the localized surface plasmon resonance (LSPR) effect and utilize the modified lithium niobate thin film as a functional substrate to tailor the optoelectronic properties of surface SnSe2 nanosheets, significantly enhancing their photodetection capabilities. The photocurrent of the SnSe2 photodetector based on LNOI with embedded Ag nanoparticles is enhanced by up to 1912 times compared to that on the original LNOI under the same conditions, which represents the highest reported plasmonic‐induced photodetection enhancement. This work deepens the basic research on plasmonic‐modified 2D materials and ferroelectric materials, which promotes the development of on‐chip photodetectors and the realization of fully functional photonic circuits that integrate all essential components on a single chip.https://doi.org/10.1002/admi.2023010942D materialsferroelectric polarizationlithium niobate thin filmlocalized surface plasmon resonanceself‐powered photodetectors
spellingShingle Yi Liu
Wenqing Sun
Zixu Sa
Fengjing Liu
Feng Ren
Zaixing Yang
Yuechen Jia
Xiaoli Sun
Feng Chen
Broadband, Plasmon‐Modified SnSe2 Photodetector Based on LNOI Thin‐Film Platform
Advanced Materials Interfaces
2D materials
ferroelectric polarization
lithium niobate thin film
localized surface plasmon resonance
self‐powered photodetectors
title Broadband, Plasmon‐Modified SnSe2 Photodetector Based on LNOI Thin‐Film Platform
title_full Broadband, Plasmon‐Modified SnSe2 Photodetector Based on LNOI Thin‐Film Platform
title_fullStr Broadband, Plasmon‐Modified SnSe2 Photodetector Based on LNOI Thin‐Film Platform
title_full_unstemmed Broadband, Plasmon‐Modified SnSe2 Photodetector Based on LNOI Thin‐Film Platform
title_short Broadband, Plasmon‐Modified SnSe2 Photodetector Based on LNOI Thin‐Film Platform
title_sort broadband plasmon modified snse2 photodetector based on lnoi thin film platform
topic 2D materials
ferroelectric polarization
lithium niobate thin film
localized surface plasmon resonance
self‐powered photodetectors
url https://doi.org/10.1002/admi.202301094
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