Ying Wang, Qianqian Du, Xialian Zheng, Yanxun Zhang, Qing Liu, Fengqiu Wang and Shuchao Qin
{"title":"基于窄带 SnPc 单晶的偏振型近红外有机光电晶体管","authors":"Ying Wang, Qianqian Du, Xialian Zheng, Yanxun Zhang, Qing Liu, Fengqiu Wang and Shuchao Qin","doi":"10.1039/D4TC02799J","DOIUrl":null,"url":null,"abstract":"<p >Near-infrared (NIR) organic photodetectors have emerged as one of the most promising candidates for next-generation light sensing by virtue of their unique properties, such as tailorable optoelectronic properties, large-area-preparability, compatibility with flexible substrates, and operation at room temperature. Limited to their poor exciton diffusion and dissociation, the bulk heterojunction architectures are always employed for most organic photodetectors. However, this amorphous film morphology has disadvantages in terms of operation speed and polarization properties. Here, we fabricated a fast and broadband organic photodetector with NIR response and polarization-sensitivity based on a narrowband SnPc single crystal. The device exhibits a good broadband response across the visible to NIR range (405–980 nm), and the NIR response can reach up to 38.5 A W<small><sup>−1</sup></small> at 850 nm, with a fast response speed of 440/590 μs and a specific detectivity of 10<small><sup>10</sup></small> Jones. At a low light irradiation of 980 nm, the maximum responsivity is about 2.6 A W<small><sup>−1</sup></small>, with the rise/decay times of 3.5/3.4 ms. In particular, benefiting from the anisotropic molecular stacking and charge transport of the SnPc single crystal, the device exhibits excellent polarization detection performance, and the linear dichroic ratios are 2.1 and 1.9 at 850 and 980 nm, respectively. Depending on this fast and polarized NIR response, high-resolution polarization imaging is demonstrated. Our work suggests that a high-quality narrowband organic single crystal is a promising platform for future polarization-sensitive NIR photodetection technology.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":null,"pages":null},"PeriodicalIF":5.7000,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A polarized near-infrared organic phototransistor based on a narrow-band SnPc single crystal†\",\"authors\":\"Ying Wang, Qianqian Du, Xialian Zheng, Yanxun Zhang, Qing Liu, Fengqiu Wang and Shuchao Qin\",\"doi\":\"10.1039/D4TC02799J\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >Near-infrared (NIR) organic photodetectors have emerged as one of the most promising candidates for next-generation light sensing by virtue of their unique properties, such as tailorable optoelectronic properties, large-area-preparability, compatibility with flexible substrates, and operation at room temperature. Limited to their poor exciton diffusion and dissociation, the bulk heterojunction architectures are always employed for most organic photodetectors. However, this amorphous film morphology has disadvantages in terms of operation speed and polarization properties. Here, we fabricated a fast and broadband organic photodetector with NIR response and polarization-sensitivity based on a narrowband SnPc single crystal. The device exhibits a good broadband response across the visible to NIR range (405–980 nm), and the NIR response can reach up to 38.5 A W<small><sup>−1</sup></small> at 850 nm, with a fast response speed of 440/590 μs and a specific detectivity of 10<small><sup>10</sup></small> Jones. At a low light irradiation of 980 nm, the maximum responsivity is about 2.6 A W<small><sup>−1</sup></small>, with the rise/decay times of 3.5/3.4 ms. In particular, benefiting from the anisotropic molecular stacking and charge transport of the SnPc single crystal, the device exhibits excellent polarization detection performance, and the linear dichroic ratios are 2.1 and 1.9 at 850 and 980 nm, respectively. Depending on this fast and polarized NIR response, high-resolution polarization imaging is demonstrated. Our work suggests that a high-quality narrowband organic single crystal is a promising platform for future polarization-sensitive NIR photodetection technology.</p>\",\"PeriodicalId\":84,\"journal\":{\"name\":\"Journal of Materials Chemistry C\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":5.7000,\"publicationDate\":\"2024-09-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Materials Chemistry C\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02799j\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry C","FirstCategoryId":"1","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2024/tc/d4tc02799j","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
A polarized near-infrared organic phototransistor based on a narrow-band SnPc single crystal†
Near-infrared (NIR) organic photodetectors have emerged as one of the most promising candidates for next-generation light sensing by virtue of their unique properties, such as tailorable optoelectronic properties, large-area-preparability, compatibility with flexible substrates, and operation at room temperature. Limited to their poor exciton diffusion and dissociation, the bulk heterojunction architectures are always employed for most organic photodetectors. However, this amorphous film morphology has disadvantages in terms of operation speed and polarization properties. Here, we fabricated a fast and broadband organic photodetector with NIR response and polarization-sensitivity based on a narrowband SnPc single crystal. The device exhibits a good broadband response across the visible to NIR range (405–980 nm), and the NIR response can reach up to 38.5 A W−1 at 850 nm, with a fast response speed of 440/590 μs and a specific detectivity of 1010 Jones. At a low light irradiation of 980 nm, the maximum responsivity is about 2.6 A W−1, with the rise/decay times of 3.5/3.4 ms. In particular, benefiting from the anisotropic molecular stacking and charge transport of the SnPc single crystal, the device exhibits excellent polarization detection performance, and the linear dichroic ratios are 2.1 and 1.9 at 850 and 980 nm, respectively. Depending on this fast and polarized NIR response, high-resolution polarization imaging is demonstrated. Our work suggests that a high-quality narrowband organic single crystal is a promising platform for future polarization-sensitive NIR photodetection technology.
期刊介绍:
The Journal of Materials Chemistry is divided into three distinct sections, A, B, and C, each catering to specific applications of the materials under study:
Journal of Materials Chemistry A focuses primarily on materials intended for applications in energy and sustainability.
Journal of Materials Chemistry B specializes in materials designed for applications in biology and medicine.
Journal of Materials Chemistry C is dedicated to materials suitable for applications in optical, magnetic, and electronic devices.
Example topic areas within the scope of Journal of Materials Chemistry C are listed below. This list is neither exhaustive nor exclusive.
Bioelectronics
Conductors
Detectors
Dielectrics
Displays
Ferroelectrics
Lasers
LEDs
Lighting
Liquid crystals
Memory
Metamaterials
Multiferroics
Photonics
Photovoltaics
Semiconductors
Sensors
Single molecule conductors
Spintronics
Superconductors
Thermoelectrics
Topological insulators
Transistors