Enhanced self-powered UV photodetection from X chromosome-shaped Cs3Cu2I5 microcrystals
Wide-bandgap lead-free copper(i) halides have attracted considerable attention in fabricating optoelectronic devices, especially for high-performance ultraviolet (UV) photodetectors (PDs). However, the metal–semiconductor–metal structures that are frequently used in the UV PDs hinder further perform...
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| Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2023-04, Vol.11 (15), p.5073-5081 |
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| container_title | Journal of materials chemistry. C, Materials for optical and electronic devices |
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| creator | Li, Xuesong Zhou, Yulu Huang, Fengchang Xiaoma Tao Ouyang, Yifang Mo, Xiaoming Zhao, Jialong |
| description | Wide-bandgap lead-free copper(i) halides have attracted considerable attention in fabricating optoelectronic devices, especially for high-performance ultraviolet (UV) photodetectors (PDs). However, the metal–semiconductor–metal structures that are frequently used in the UV PDs hinder further performance improvement due to the poor separation of photo-generated carriers. In this work, we demonstrated a heterostructured self-powered UV PD using lead-free copper(i) halide Cs3Cu2I5 microcrystals (MCs) that had a curious X chromosome-shaped morphology on p-Si substrates. The X chromosome-shaped Cs3Cu2I5 MCs showed distinct blue emission at 441 nm and exhibited high stability under ambient air conditions. By introducing a thin polymethyl methacrylate (PMMA) film as modification for the interface, the heterostructured UV PD showed a remarkable responsivity of 15.2 mA W−1 for an ultralow light intensity of 0.422 μW cm−2, a specific detectivity of 8.1 × 1011 Jones, an on/off ratio of up to 4.14 × 103, and a response time of 41.43 ms/47.84 ms under 298 nm UV irradiation at zero bias. Notably, the on/off ratio was nearly 450 times higher than that of the device without X chromosome-shaped Cs3Cu2I5 MCs. The unencapsulated device exhibited extraordinary stability with no significant reduction in the photocurrent even after continuous operation for 8 hours or storage in ambient air for 60 days. Our work introduces a feasible approach that uses lead-free copper(i) halide Cs3Cu2I5 in future high-performance self-powered UV photodetection applications. |
| doi_str_mv | 10.1039/d3tc00668a |
| format | Article |
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However, the metal–semiconductor–metal structures that are frequently used in the UV PDs hinder further performance improvement due to the poor separation of photo-generated carriers. In this work, we demonstrated a heterostructured self-powered UV PD using lead-free copper(i) halide Cs3Cu2I5 microcrystals (MCs) that had a curious X chromosome-shaped morphology on p-Si substrates. The X chromosome-shaped Cs3Cu2I5 MCs showed distinct blue emission at 441 nm and exhibited high stability under ambient air conditions. By introducing a thin polymethyl methacrylate (PMMA) film as modification for the interface, the heterostructured UV PD showed a remarkable responsivity of 15.2 mA W−1 for an ultralow light intensity of 0.422 μW cm−2, a specific detectivity of 8.1 × 1011 Jones, an on/off ratio of up to 4.14 × 103, and a response time of 41.43 ms/47.84 ms under 298 nm UV irradiation at zero bias. Notably, the on/off ratio was nearly 450 times higher than that of the device without X chromosome-shaped Cs3Cu2I5 MCs. The unencapsulated device exhibited extraordinary stability with no significant reduction in the photocurrent even after continuous operation for 8 hours or storage in ambient air for 60 days. Our work introduces a feasible approach that uses lead-free copper(i) halide Cs3Cu2I5 in future high-performance self-powered UV photodetection applications.</description><identifier>ISSN: 2050-7526</identifier><identifier>EISSN: 2050-7534</identifier><identifier>DOI: 10.1039/d3tc00668a</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Chromosomes ; Copper ; Energy gap ; Halides ; Lead free ; Luminous intensity ; Microcrystals ; Optoelectronic devices ; Photoelectric effect ; Polymethyl methacrylate ; Silicon substrates ; Stability ; Ultraviolet detectors ; Ultraviolet radiation ; X chromosomes</subject><ispartof>Journal of materials chemistry. 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C, Materials for optical and electronic devices</title><description>Wide-bandgap lead-free copper(i) halides have attracted considerable attention in fabricating optoelectronic devices, especially for high-performance ultraviolet (UV) photodetectors (PDs). However, the metal–semiconductor–metal structures that are frequently used in the UV PDs hinder further performance improvement due to the poor separation of photo-generated carriers. In this work, we demonstrated a heterostructured self-powered UV PD using lead-free copper(i) halide Cs3Cu2I5 microcrystals (MCs) that had a curious X chromosome-shaped morphology on p-Si substrates. The X chromosome-shaped Cs3Cu2I5 MCs showed distinct blue emission at 441 nm and exhibited high stability under ambient air conditions. By introducing a thin polymethyl methacrylate (PMMA) film as modification for the interface, the heterostructured UV PD showed a remarkable responsivity of 15.2 mA W−1 for an ultralow light intensity of 0.422 μW cm−2, a specific detectivity of 8.1 × 1011 Jones, an on/off ratio of up to 4.14 × 103, and a response time of 41.43 ms/47.84 ms under 298 nm UV irradiation at zero bias. Notably, the on/off ratio was nearly 450 times higher than that of the device without X chromosome-shaped Cs3Cu2I5 MCs. The unencapsulated device exhibited extraordinary stability with no significant reduction in the photocurrent even after continuous operation for 8 hours or storage in ambient air for 60 days. Our work introduces a feasible approach that uses lead-free copper(i) halide Cs3Cu2I5 in future high-performance self-powered UV photodetection applications.</description><subject>Chromosomes</subject><subject>Copper</subject><subject>Energy gap</subject><subject>Halides</subject><subject>Lead free</subject><subject>Luminous intensity</subject><subject>Microcrystals</subject><subject>Optoelectronic devices</subject><subject>Photoelectric effect</subject><subject>Polymethyl methacrylate</subject><subject>Silicon substrates</subject><subject>Stability</subject><subject>Ultraviolet detectors</subject><subject>Ultraviolet radiation</subject><subject>X chromosomes</subject><issn>2050-7526</issn><issn>2050-7534</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNo9j0tLAzEUhYMoWGo3_oKA62jej6UMVQsFN1bdlUweTEtnMk4yiP_egMWz-e6Bw7kcAG4JvieYmQfPisNYSm0vwIJigZESjF_-31Reg1XOR1ylidTSLMDHeujs4IKHOZwiGtN3mKrZvcOxSyX5UIIrhzTAOKUefkLXVaac-oByZ8cabTJrZroRsD-4KbnpJxd7yjfgKlaE1ZlLsHtavzUvaPv6vGket2gkmhWkrDKBO9M6b71mkreSay95dAZTEVsVWVQEc-yIpTJEbbWyMvJIbXDCCbYEd3-945S-5pDL_pjmaagv91TXndwwY9gvYHBUYw</recordid><startdate>20230413</startdate><enddate>20230413</enddate><creator>Li, Xuesong</creator><creator>Zhou, Yulu</creator><creator>Huang, Fengchang</creator><creator>Xiaoma Tao</creator><creator>Ouyang, Yifang</creator><creator>Mo, Xiaoming</creator><creator>Zhao, Jialong</creator><general>Royal Society of Chemistry</general><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20230413</creationdate><title>Enhanced self-powered UV photodetection from X chromosome-shaped Cs3Cu2I5 microcrystals</title><author>Li, Xuesong ; Zhou, Yulu ; Huang, Fengchang ; Xiaoma Tao ; Ouyang, Yifang ; Mo, Xiaoming ; Zhao, Jialong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p183t-7a79e4c9bcdad8364b648d64fc9025fb7f3f71040c1a26ef8a87a6f4f2aec5c53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Chromosomes</topic><topic>Copper</topic><topic>Energy gap</topic><topic>Halides</topic><topic>Lead free</topic><topic>Luminous intensity</topic><topic>Microcrystals</topic><topic>Optoelectronic devices</topic><topic>Photoelectric effect</topic><topic>Polymethyl methacrylate</topic><topic>Silicon substrates</topic><topic>Stability</topic><topic>Ultraviolet detectors</topic><topic>Ultraviolet radiation</topic><topic>X chromosomes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Xuesong</creatorcontrib><creatorcontrib>Zhou, Yulu</creatorcontrib><creatorcontrib>Huang, Fengchang</creatorcontrib><creatorcontrib>Xiaoma Tao</creatorcontrib><creatorcontrib>Ouyang, Yifang</creatorcontrib><creatorcontrib>Mo, Xiaoming</creatorcontrib><creatorcontrib>Zhao, Jialong</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Xuesong</au><au>Zhou, Yulu</au><au>Huang, Fengchang</au><au>Xiaoma Tao</au><au>Ouyang, Yifang</au><au>Mo, Xiaoming</au><au>Zhao, Jialong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced self-powered UV photodetection from X chromosome-shaped Cs3Cu2I5 microcrystals</atitle><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle><date>2023-04-13</date><risdate>2023</risdate><volume>11</volume><issue>15</issue><spage>5073</spage><epage>5081</epage><pages>5073-5081</pages><issn>2050-7526</issn><eissn>2050-7534</eissn><abstract>Wide-bandgap lead-free copper(i) halides have attracted considerable attention in fabricating optoelectronic devices, especially for high-performance ultraviolet (UV) photodetectors (PDs). However, the metal–semiconductor–metal structures that are frequently used in the UV PDs hinder further performance improvement due to the poor separation of photo-generated carriers. In this work, we demonstrated a heterostructured self-powered UV PD using lead-free copper(i) halide Cs3Cu2I5 microcrystals (MCs) that had a curious X chromosome-shaped morphology on p-Si substrates. The X chromosome-shaped Cs3Cu2I5 MCs showed distinct blue emission at 441 nm and exhibited high stability under ambient air conditions. By introducing a thin polymethyl methacrylate (PMMA) film as modification for the interface, the heterostructured UV PD showed a remarkable responsivity of 15.2 mA W−1 for an ultralow light intensity of 0.422 μW cm−2, a specific detectivity of 8.1 × 1011 Jones, an on/off ratio of up to 4.14 × 103, and a response time of 41.43 ms/47.84 ms under 298 nm UV irradiation at zero bias. Notably, the on/off ratio was nearly 450 times higher than that of the device without X chromosome-shaped Cs3Cu2I5 MCs. The unencapsulated device exhibited extraordinary stability with no significant reduction in the photocurrent even after continuous operation for 8 hours or storage in ambient air for 60 days. Our work introduces a feasible approach that uses lead-free copper(i) halide Cs3Cu2I5 in future high-performance self-powered UV photodetection applications.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d3tc00668a</doi><tpages>9</tpages></addata></record> |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Chromosomes Copper Energy gap Halides Lead free Luminous intensity Microcrystals Optoelectronic devices Photoelectric effect Polymethyl methacrylate Silicon substrates Stability Ultraviolet detectors Ultraviolet radiation X chromosomes |
| title | Enhanced self-powered UV photodetection from X chromosome-shaped Cs3Cu2I5 microcrystals |
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