Enhanced Photoresponsivity of 2H-MoTe<sub>2</sub> by Inserting 1T-MoTe<sub>2</sub> Interlayer Contact for Photodetector Applications
The 2H molybdenum telluride (MoTe<sub>2</sub>) photodetector structures were made with inserting 1T-MoTe<sub>2</sub> interlayer contacts. The optical response properties such as photoconductivity (PC) spectroscopy, illumination intensity dependent photoresponsivity, frequency...
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MDPI AG
2021-08-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/8/964 |
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| author | Der-Yuh Lin Hung-Pin Hsu Guang-Hsin Liu Ting-Zhong Dai Yu-Tai Shih |
| author_facet | Der-Yuh Lin Hung-Pin Hsu Guang-Hsin Liu Ting-Zhong Dai Yu-Tai Shih |
| author_sort | Der-Yuh Lin |
| collection | DOAJ |
| description | The 2H molybdenum telluride (MoTe<sub>2</sub>) photodetector structures were made with inserting 1T-MoTe<sub>2</sub> interlayer contacts. The optical response properties such as photoconductivity (PC) spectroscopy, illumination intensity dependent photoresponsivity, frequency dependent photocurrent, and time-resolved photoresponse were carried out in this study. In PC spectra, a much higher photoresponsivity of 2H-MoTe<sub>2</sub> were observed by inserting 1T-MoTe<sub>2</sub> interlayer contact. The frequency dependent photocurrent and time-resolved photoresponse investigations explore the carrier kinetic decay process of MoTe<sub>2</sub> with different electrode contact. The Schottky barrier heights (SBH) extracted by thermionic emission theory were also investigated by inserting 1T-MoTe<sub>2</sub> interlayer contacts. The results show the potential applicability for photodetection devices based MoTe<sub>2</sub> layered transition metal dichalcogenides semiconductors. |
| first_indexed | 2024-03-10T08:53:18Z |
| format | Article |
| id | doaj.art-20723e1f0e61437e8052b63111ca79ca |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T08:53:18Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-20723e1f0e61437e8052b63111ca79ca2023-11-22T07:17:30ZengMDPI AGCrystals2073-43522021-08-0111896410.3390/cryst11080964Enhanced Photoresponsivity of 2H-MoTe<sub>2</sub> by Inserting 1T-MoTe<sub>2</sub> Interlayer Contact for Photodetector ApplicationsDer-Yuh Lin0Hung-Pin Hsu1Guang-Hsin Liu2Ting-Zhong Dai3Yu-Tai Shih4Department of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua City 500, TaiwanDepartment of Electronic Engineering, Ming Chi University of Technology, No. 84, Gongzhuan Road, New Taipei City 24301, TaiwanDepartment of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua City 500, TaiwanDepartment of Electronic Engineering, National Changhua University of Education, No. 2, Shi-Da Road, Changhua City 500, TaiwanDepartment of Physics, National Changhua University of Education, No. 2, Shi-Da Road, Changhua City 500, TaiwanThe 2H molybdenum telluride (MoTe<sub>2</sub>) photodetector structures were made with inserting 1T-MoTe<sub>2</sub> interlayer contacts. The optical response properties such as photoconductivity (PC) spectroscopy, illumination intensity dependent photoresponsivity, frequency dependent photocurrent, and time-resolved photoresponse were carried out in this study. In PC spectra, a much higher photoresponsivity of 2H-MoTe<sub>2</sub> were observed by inserting 1T-MoTe<sub>2</sub> interlayer contact. The frequency dependent photocurrent and time-resolved photoresponse investigations explore the carrier kinetic decay process of MoTe<sub>2</sub> with different electrode contact. The Schottky barrier heights (SBH) extracted by thermionic emission theory were also investigated by inserting 1T-MoTe<sub>2</sub> interlayer contacts. The results show the potential applicability for photodetection devices based MoTe<sub>2</sub> layered transition metal dichalcogenides semiconductors.https://www.mdpi.com/2073-4352/11/8/964MoTe<sub>2</sub>photoconductivityphotoresponse |
| spellingShingle | Der-Yuh Lin Hung-Pin Hsu Guang-Hsin Liu Ting-Zhong Dai Yu-Tai Shih Enhanced Photoresponsivity of 2H-MoTe<sub>2</sub> by Inserting 1T-MoTe<sub>2</sub> Interlayer Contact for Photodetector Applications Crystals MoTe<sub>2</sub> photoconductivity photoresponse |
| title | Enhanced Photoresponsivity of 2H-MoTe<sub>2</sub> by Inserting 1T-MoTe<sub>2</sub> Interlayer Contact for Photodetector Applications |
| title_full | Enhanced Photoresponsivity of 2H-MoTe<sub>2</sub> by Inserting 1T-MoTe<sub>2</sub> Interlayer Contact for Photodetector Applications |
| title_fullStr | Enhanced Photoresponsivity of 2H-MoTe<sub>2</sub> by Inserting 1T-MoTe<sub>2</sub> Interlayer Contact for Photodetector Applications |
| title_full_unstemmed | Enhanced Photoresponsivity of 2H-MoTe<sub>2</sub> by Inserting 1T-MoTe<sub>2</sub> Interlayer Contact for Photodetector Applications |
| title_short | Enhanced Photoresponsivity of 2H-MoTe<sub>2</sub> by Inserting 1T-MoTe<sub>2</sub> Interlayer Contact for Photodetector Applications |
| title_sort | enhanced photoresponsivity of 2h mote sub 2 sub by inserting 1t mote sub 2 sub interlayer contact for photodetector applications |
| topic | MoTe<sub>2</sub> photoconductivity photoresponse |
| url | https://www.mdpi.com/2073-4352/11/8/964 |
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