Thermally Stable Organic Field‐Effect Transistors Based on Asymmetric BTBT Derivatives for High Performance Solar‐Blind Photodetectors
Abstract High‐performance solar‐blind photodetectors are widely studied due to their unique significance in military and industrial applications. Yet the rational molecular design for materials to possess strong absorption in solar‐blind region is rarely addressed. Here, an organic solar‐blind photo...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2022-04-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202106085 |
| _version_ | 1817989044872675328 |
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| author | Yicai Dong Yanan Sun Jie Liu Xiaosong Shi Haiyang Li Jing Zhang Chunlei Li Yuanping Yi Song Mo Lin Fan Lang Jiang |
| author_facet | Yicai Dong Yanan Sun Jie Liu Xiaosong Shi Haiyang Li Jing Zhang Chunlei Li Yuanping Yi Song Mo Lin Fan Lang Jiang |
| author_sort | Yicai Dong |
| collection | DOAJ |
| description | Abstract High‐performance solar‐blind photodetectors are widely studied due to their unique significance in military and industrial applications. Yet the rational molecular design for materials to possess strong absorption in solar‐blind region is rarely addressed. Here, an organic solar‐blind photodetector is reported by designing a novel asymmetric molecule integrated strong solar‐blind absorption with high charge transport property. Such alkyl substituted [1]benzothieno[3,2‐b][1]‐benzothiophene (BTBT) derivatives Cn‐BTBTN (n = 6, 8, and 10) can be easily assembled into 2D molecular crystals and perform high mobility up to 3.28 cm2 V−1s−1, which is two orders of magnitude higher than the non‐substituted core BTBTN. Cn‐BTBTNs also exhibit dramatically higher thermal stability than the symmetric alkyl substituted C8‐BTBT. Moreover, C10‐BTBTN films with the highest mobility and strongest solar‐blind absorption among the Cn‐BTBTNs are applied for solar‐blind photodetectors, which reveal record‐high photosensitivity and detectivity up to 1.60 × 107 and 7.70 × 1014 Jones. Photodetector arrays and flexible devices are also successfully fabricated. The design strategy can provide guidelines for developing materials featuring high thermal stability and stimulating such materials in solar‐blind photodetector application. |
| first_indexed | 2024-04-14T00:42:12Z |
| format | Article |
| id | doaj.art-3507e0e03b3d402ab91c4dd42af20f8d |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-04-14T00:42:12Z |
| publishDate | 2022-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-3507e0e03b3d402ab91c4dd42af20f8d2022-12-22T02:22:09ZengWileyAdvanced Science2198-38442022-04-01912n/an/a10.1002/advs.202106085Thermally Stable Organic Field‐Effect Transistors Based on Asymmetric BTBT Derivatives for High Performance Solar‐Blind PhotodetectorsYicai Dong0Yanan Sun1Jie Liu2Xiaosong Shi3Haiyang Li4Jing Zhang5Chunlei Li6Yuanping Yi7Song Mo8Lin Fan9Lang Jiang10Beijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaKey Laboratory of Science and Technology on High‐tech Polymer Materials Chinese Academy of Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaKey Laboratory of Science and Technology on High‐tech Polymer Materials Chinese Academy of Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaBeijing National Laboratory for Molecular Sciences Key Laboratory of Organic Solids Institute of Chemistry Chinese Academy of Sciences Beijing 100190 ChinaAbstract High‐performance solar‐blind photodetectors are widely studied due to their unique significance in military and industrial applications. Yet the rational molecular design for materials to possess strong absorption in solar‐blind region is rarely addressed. Here, an organic solar‐blind photodetector is reported by designing a novel asymmetric molecule integrated strong solar‐blind absorption with high charge transport property. Such alkyl substituted [1]benzothieno[3,2‐b][1]‐benzothiophene (BTBT) derivatives Cn‐BTBTN (n = 6, 8, and 10) can be easily assembled into 2D molecular crystals and perform high mobility up to 3.28 cm2 V−1s−1, which is two orders of magnitude higher than the non‐substituted core BTBTN. Cn‐BTBTNs also exhibit dramatically higher thermal stability than the symmetric alkyl substituted C8‐BTBT. Moreover, C10‐BTBTN films with the highest mobility and strongest solar‐blind absorption among the Cn‐BTBTNs are applied for solar‐blind photodetectors, which reveal record‐high photosensitivity and detectivity up to 1.60 × 107 and 7.70 × 1014 Jones. Photodetector arrays and flexible devices are also successfully fabricated. The design strategy can provide guidelines for developing materials featuring high thermal stability and stimulating such materials in solar‐blind photodetector application.https://doi.org/10.1002/advs.202106085asymmetric moleculeshigh detectivityorganic field‐effect transistorssolar‐blind photodetectorsthermal stability |
| spellingShingle | Yicai Dong Yanan Sun Jie Liu Xiaosong Shi Haiyang Li Jing Zhang Chunlei Li Yuanping Yi Song Mo Lin Fan Lang Jiang Thermally Stable Organic Field‐Effect Transistors Based on Asymmetric BTBT Derivatives for High Performance Solar‐Blind Photodetectors Advanced Science asymmetric molecules high detectivity organic field‐effect transistors solar‐blind photodetectors thermal stability |
| title | Thermally Stable Organic Field‐Effect Transistors Based on Asymmetric BTBT Derivatives for High Performance Solar‐Blind Photodetectors |
| title_full | Thermally Stable Organic Field‐Effect Transistors Based on Asymmetric BTBT Derivatives for High Performance Solar‐Blind Photodetectors |
| title_fullStr | Thermally Stable Organic Field‐Effect Transistors Based on Asymmetric BTBT Derivatives for High Performance Solar‐Blind Photodetectors |
| title_full_unstemmed | Thermally Stable Organic Field‐Effect Transistors Based on Asymmetric BTBT Derivatives for High Performance Solar‐Blind Photodetectors |
| title_short | Thermally Stable Organic Field‐Effect Transistors Based on Asymmetric BTBT Derivatives for High Performance Solar‐Blind Photodetectors |
| title_sort | thermally stable organic field effect transistors based on asymmetric btbt derivatives for high performance solar blind photodetectors |
| topic | asymmetric molecules high detectivity organic field‐effect transistors solar‐blind photodetectors thermal stability |
| url | https://doi.org/10.1002/advs.202106085 |
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