A Trap-Assisted Photomultiplication-Type Organic Photodetector With High Detectivity From Visible to Shortwave Infrared Light
This letter reports a trap-assisted photomultiplication-type organic photodetector (PM-OPD) with a broad sensing range from 400 to 1400 nm. By easily tunning the donor/acceptor ratio in bulk-heterojunction layer consisting Poly([2,6’-4,8-di(5-ethylhexylthienyl)benzo[1,2-b;3,3-b]dithiophen...
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| Format: | Article |
| Language: | English |
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IEEE
2025-01-01
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| Series: | IEEE Journal of the Electron Devices Society |
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| Online Access: | https://ieeexplore.ieee.org/document/10816666/ |
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| author | Jingwen Chen Claire Qing-Ying Huang Xin Zhang Sheng Dong Xiye Yang |
| author_facet | Jingwen Chen Claire Qing-Ying Huang Xin Zhang Sheng Dong Xiye Yang |
| author_sort | Jingwen Chen |
| collection | DOAJ |
| description | This letter reports a trap-assisted photomultiplication-type organic photodetector (PM-OPD) with a broad sensing range from 400 to 1400 nm. By easily tunning the donor/acceptor ratio in bulk-heterojunction layer consisting Poly([2,6’-4,8-di(5-ethylhexylthienyl)benzo[1,2-b;3,3-b]dithiophene]{3-fluoro-2[(2-ethylhexyl)carbonyl] thieno[3,4-b]thiophenediyl}) (PTB7-Th) and a novel non-fullerene acceptor (NFA) pendant 2,2’-(((2,5-bis(2-octyldodecyl)-3,6-dioxo-2,3,5,6-tetrahydropyrrolo [3,4-c]pyrrole-1,4-diyl)bis(thiophene-5,2-diyl))bis(4-oxonaphthalene-3(4H)-yl-1(4H)-ylidene)) dimalononitrile named DPP-QC, the device shows specifically a high external quantum efficiency (EQE) value of 112% and specific detectivity (D*) over <inline-formula> <tex-math notation="LaTeX">$10^{10}$ </tex-math></inline-formula> Jones at 1200 nm at a light intensity of 0.108 mW/cm2. Meanwhile the PM-OPD shows ultra-fast response time <inline-formula> <tex-math notation="LaTeX">$t_{r}$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$t_{f}$ </tex-math></inline-formula> of 4.1 <inline-formula> <tex-math notation="LaTeX">$\mu $ </tex-math></inline-formula>s and 4.3 <inline-formula> <tex-math notation="LaTeX">$\mu $ </tex-math></inline-formula>s on microsecond (<inline-formula> <tex-math notation="LaTeX">$\mu $ </tex-math></inline-formula>s) scale. Our work proves that PM-type shortwave infrared (SWIR) OPD can simultaneously achieve high responsivity, broad-spectral response, fast response and well photodiode characteristics. |
| format | Article |
| id | doaj-art-1a78b08947674ec98a6027d3f905c9aa |
| institution | Kabale University |
| issn | 2168-6734 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Journal of the Electron Devices Society |
| spelling | doaj-art-1a78b08947674ec98a6027d3f905c9aa2025-01-28T00:00:33ZengIEEEIEEE Journal of the Electron Devices Society2168-67342025-01-0113737810.1109/JEDS.2024.352339410816666A Trap-Assisted Photomultiplication-Type Organic Photodetector With High Detectivity From Visible to Shortwave Infrared LightJingwen Chen0Claire Qing-Ying Huang1Xin Zhang2Sheng Dong3https://orcid.org/0009-0004-3416-0499Xiye Yang4https://orcid.org/0000-0001-8273-9535Lumidar Technology Company Ltd., Guangzhou, ChinaLumidar Technology Company Ltd., Guangzhou, ChinaLumidar Technology Company Ltd., Guangzhou, ChinaLumidar Technology Company Ltd., Guangzhou, ChinaLumidar Technology Company Ltd., Guangzhou, ChinaThis letter reports a trap-assisted photomultiplication-type organic photodetector (PM-OPD) with a broad sensing range from 400 to 1400 nm. By easily tunning the donor/acceptor ratio in bulk-heterojunction layer consisting Poly([2,6’-4,8-di(5-ethylhexylthienyl)benzo[1,2-b;3,3-b]dithiophene]{3-fluoro-2[(2-ethylhexyl)carbonyl] thieno[3,4-b]thiophenediyl}) (PTB7-Th) and a novel non-fullerene acceptor (NFA) pendant 2,2’-(((2,5-bis(2-octyldodecyl)-3,6-dioxo-2,3,5,6-tetrahydropyrrolo [3,4-c]pyrrole-1,4-diyl)bis(thiophene-5,2-diyl))bis(4-oxonaphthalene-3(4H)-yl-1(4H)-ylidene)) dimalononitrile named DPP-QC, the device shows specifically a high external quantum efficiency (EQE) value of 112% and specific detectivity (D*) over <inline-formula> <tex-math notation="LaTeX">$10^{10}$ </tex-math></inline-formula> Jones at 1200 nm at a light intensity of 0.108 mW/cm2. Meanwhile the PM-OPD shows ultra-fast response time <inline-formula> <tex-math notation="LaTeX">$t_{r}$ </tex-math></inline-formula> and <inline-formula> <tex-math notation="LaTeX">$t_{f}$ </tex-math></inline-formula> of 4.1 <inline-formula> <tex-math notation="LaTeX">$\mu $ </tex-math></inline-formula>s and 4.3 <inline-formula> <tex-math notation="LaTeX">$\mu $ </tex-math></inline-formula>s on microsecond (<inline-formula> <tex-math notation="LaTeX">$\mu $ </tex-math></inline-formula>s) scale. Our work proves that PM-type shortwave infrared (SWIR) OPD can simultaneously achieve high responsivity, broad-spectral response, fast response and well photodiode characteristics.https://ieeexplore.ieee.org/document/10816666/Photomultiplication-type photodetectornon-fullerene acceptorshortwave infrared |
| spellingShingle | Jingwen Chen Claire Qing-Ying Huang Xin Zhang Sheng Dong Xiye Yang A Trap-Assisted Photomultiplication-Type Organic Photodetector With High Detectivity From Visible to Shortwave Infrared Light IEEE Journal of the Electron Devices Society Photomultiplication-type photodetector non-fullerene acceptor shortwave infrared |
| title | A Trap-Assisted Photomultiplication-Type Organic Photodetector With High Detectivity From Visible to Shortwave Infrared Light |
| title_full | A Trap-Assisted Photomultiplication-Type Organic Photodetector With High Detectivity From Visible to Shortwave Infrared Light |
| title_fullStr | A Trap-Assisted Photomultiplication-Type Organic Photodetector With High Detectivity From Visible to Shortwave Infrared Light |
| title_full_unstemmed | A Trap-Assisted Photomultiplication-Type Organic Photodetector With High Detectivity From Visible to Shortwave Infrared Light |
| title_short | A Trap-Assisted Photomultiplication-Type Organic Photodetector With High Detectivity From Visible to Shortwave Infrared Light |
| title_sort | trap assisted photomultiplication type organic photodetector with high detectivity from visible to shortwave infrared light |
| topic | Photomultiplication-type photodetector non-fullerene acceptor shortwave infrared |
| url | https://ieeexplore.ieee.org/document/10816666/ |
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