Facile Synthesis of Te and Ag<sub>2</sub>Te Microrods for Light-Activated Bending-Responsive Photodetectors
In this study, we report the synthesis of Te and Ag<sub>2</sub>Te micron-sized rods (MRs) via a controlled hot-injection-based quenching process, enabling the control of rod morphology and enhanced crystallinity. Structural analysis confirmed that the synthesized Te MRs exhibit a trigona...
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2025-07-01
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| Series: | Nanomaterials |
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| author | Hsueh-Shih Chen Kapil Patidar Pen-Ru Chen |
| author_facet | Hsueh-Shih Chen Kapil Patidar Pen-Ru Chen |
| author_sort | Hsueh-Shih Chen |
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| description | In this study, we report the synthesis of Te and Ag<sub>2</sub>Te micron-sized rods (MRs) via a controlled hot-injection-based quenching process, enabling the control of rod morphology and enhanced crystallinity. Structural analysis confirmed that the synthesized Te MRs exhibit a trigonal phase, growing along the (110) direction, while Ag<sub>2</sub>Te MRs undergo a phase transformation into a monoclinic structure upon Ag doping. A simple and scalable photodetector (PD) was fabricated by drop-casting Te and Ag<sub>2</sub>Te MRs onto PET plastic films, followed by the application of Ag paste electrodes. The PD demonstrated room-light-induced photocurrent responses, which increased significantly upon mechanical bending due to the formation of additional conductive pathways between MRs. The Ag<sub>2</sub>Te-based bending sensor exhibited a fivefold enhancement in photocurrent compared to its Te counterpart and maintained high stability over 1000 bending cycles. These results highlight the potential of Te and Ag<sub>2</sub>Te MRs for use in flexible and wearable motion-sensing technologies, offering a simple yet effective approach for integrating 1D telluride nanostructures into scalable optoelectronic applications. |
| format | Article |
| id | doaj-art-e6f27316fc6f43e5aa8774d8f6bd201e |
| institution | Kabale University |
| issn | 2079-4991 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
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| series | Nanomaterials |
| spelling | doaj-art-e6f27316fc6f43e5aa8774d8f6bd201e2025-08-20T04:00:54ZengMDPI AGNanomaterials2079-49912025-07-011515115610.3390/nano15151156Facile Synthesis of Te and Ag<sub>2</sub>Te Microrods for Light-Activated Bending-Responsive PhotodetectorsHsueh-Shih Chen0Kapil Patidar1Pen-Ru Chen2Department of Materials Science & Engineering, National Tsing Hua University, Hsinchu 30013, TaiwanDepartment of Materials Science & Engineering, National Tsing Hua University, Hsinchu 30013, TaiwanDepartment of Materials Science & Engineering, National Tsing Hua University, Hsinchu 30013, TaiwanIn this study, we report the synthesis of Te and Ag<sub>2</sub>Te micron-sized rods (MRs) via a controlled hot-injection-based quenching process, enabling the control of rod morphology and enhanced crystallinity. Structural analysis confirmed that the synthesized Te MRs exhibit a trigonal phase, growing along the (110) direction, while Ag<sub>2</sub>Te MRs undergo a phase transformation into a monoclinic structure upon Ag doping. A simple and scalable photodetector (PD) was fabricated by drop-casting Te and Ag<sub>2</sub>Te MRs onto PET plastic films, followed by the application of Ag paste electrodes. The PD demonstrated room-light-induced photocurrent responses, which increased significantly upon mechanical bending due to the formation of additional conductive pathways between MRs. The Ag<sub>2</sub>Te-based bending sensor exhibited a fivefold enhancement in photocurrent compared to its Te counterpart and maintained high stability over 1000 bending cycles. These results highlight the potential of Te and Ag<sub>2</sub>Te MRs for use in flexible and wearable motion-sensing technologies, offering a simple yet effective approach for integrating 1D telluride nanostructures into scalable optoelectronic applications.https://www.mdpi.com/2079-4991/15/15/1156metal telluride nanocrystalssilver telluride (Ag<sub>2</sub>Te) nanomaterialshot-injection synthesismicronrodsoptoelectronic application |
| spellingShingle | Hsueh-Shih Chen Kapil Patidar Pen-Ru Chen Facile Synthesis of Te and Ag<sub>2</sub>Te Microrods for Light-Activated Bending-Responsive Photodetectors Nanomaterials metal telluride nanocrystals silver telluride (Ag<sub>2</sub>Te) nanomaterials hot-injection synthesis micronrods optoelectronic application |
| title | Facile Synthesis of Te and Ag<sub>2</sub>Te Microrods for Light-Activated Bending-Responsive Photodetectors |
| title_full | Facile Synthesis of Te and Ag<sub>2</sub>Te Microrods for Light-Activated Bending-Responsive Photodetectors |
| title_fullStr | Facile Synthesis of Te and Ag<sub>2</sub>Te Microrods for Light-Activated Bending-Responsive Photodetectors |
| title_full_unstemmed | Facile Synthesis of Te and Ag<sub>2</sub>Te Microrods for Light-Activated Bending-Responsive Photodetectors |
| title_short | Facile Synthesis of Te and Ag<sub>2</sub>Te Microrods for Light-Activated Bending-Responsive Photodetectors |
| title_sort | facile synthesis of te and ag sub 2 sub te microrods for light activated bending responsive photodetectors |
| topic | metal telluride nanocrystals silver telluride (Ag<sub>2</sub>Te) nanomaterials hot-injection synthesis micronrods optoelectronic application |
| url | https://www.mdpi.com/2079-4991/15/15/1156 |
| work_keys_str_mv | AT hsuehshihchen facilesynthesisofteandagsub2subtemicrorodsforlightactivatedbendingresponsivephotodetectors AT kapilpatidar facilesynthesisofteandagsub2subtemicrorodsforlightactivatedbendingresponsivephotodetectors AT penruchen facilesynthesisofteandagsub2subtemicrorodsforlightactivatedbendingresponsivephotodetectors |