Yuping Liu, Zhirong Liu, Zhiguo Zhang, Junyi Huang, Xiongjie Li, Haixuan Yu, Yan Shen, Mingkui Wang and Guoli Tu
{"title":"利用聚偏氟乙烯-三氟乙烯掺杂缺陷钝化抑制噪声的灵敏自供电过氧化物光电探测器","authors":"Yuping Liu, Zhirong Liu, Zhiguo Zhang, Junyi Huang, Xiongjie Li, Haixuan Yu, Yan Shen, Mingkui Wang and Guoli Tu","doi":"10.1039/D4TC01547A","DOIUrl":null,"url":null,"abstract":"<p >The rapid advancement of self-powered perovskite photodetectors (PDs) in recent years has been hindered by numerous defects present in solution-processed perovskite polycrystalline films, significantly impacting device performance. Of particular concern is the influence of these defects on device noise, a critical parameter directly affecting detector sensitivity. This study proposes the incorporation of poly(vinylidene fluoride–trifluoroethylene) (PVT) additives into FA<small><sub>0.9</sub></small>MA<small><sub>0.05</sub></small>Cs<small><sub>0.05</sub></small>PbI<small><sub>3</sub></small> perovskite precursor solutions to alleviate defect formation and enhance detector sensitivity. By optimizing the PVT concentration to 0.05 mg L<small><sup>−1</sup></small>, the photodetector (PD) demonstrates remarkable improvement, achieving a low noise power spectral density (0.1 pA Hz<small><sup>−1/2</sup></small>) and dark current density (2.12 nA cm<small><sup>−2</sup></small>) at zero bias. The device exhibits a notable decrease in defect density by an order of magnitude through the concurrent passivation of shallow-level defects with PVT. Additionally, the PD shows a high specific detection rate (<em>D</em>* = 2.8 × 10<small><sup>13</sup></small> jones) at 700 nm, accompanied by a linear dynamic range exceeding 101 dB. This research not only advances our understanding of noise suppression mechanisms but also unveils the potential application of high-sensitivity PDs for real-time heart rate monitoring, showing promise for significant advancements in human health monitoring technology.</p>","PeriodicalId":84,"journal":{"name":"Journal of Materials Chemistry C","volume":" 27","pages":" 9944-9949"},"PeriodicalIF":5.1000,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A sensitive self-powered perovskite photodetector via noise suppression with poly(vinylidene fluoride–trifluoroethylene) doping for defect passivation†\",\"authors\":\"Yuping Liu, Zhirong Liu, Zhiguo Zhang, Junyi Huang, Xiongjie Li, Haixuan Yu, Yan Shen, Mingkui Wang and Guoli Tu\",\"doi\":\"10.1039/D4TC01547A\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p >The rapid advancement of self-powered perovskite photodetectors (PDs) in recent years has been hindered by numerous defects present in solution-processed perovskite polycrystalline films, significantly impacting device performance. Of particular concern is the influence of these defects on device noise, a critical parameter directly affecting detector sensitivity. This study proposes the incorporation of poly(vinylidene fluoride–trifluoroethylene) (PVT) additives into FA<small><sub>0.9</sub></small>MA<small><sub>0.05</sub></small>Cs<small><sub>0.05</sub></small>PbI<small><sub>3</sub></small> perovskite precursor solutions to alleviate defect formation and enhance detector sensitivity. By optimizing the PVT concentration to 0.05 mg L<small><sup>−1</sup></small>, the photodetector (PD) demonstrates remarkable improvement, achieving a low noise power spectral density (0.1 pA Hz<small><sup>−1/2</sup></small>) and dark current density (2.12 nA cm<small><sup>−2</sup></small>) at zero bias. The device exhibits a notable decrease in defect density by an order of magnitude through the concurrent passivation of shallow-level defects with PVT. Additionally, the PD shows a high specific detection rate (<em>D</em>* = 2.8 × 10<small><sup>13</sup></small> jones) at 700 nm, accompanied by a linear dynamic range exceeding 101 dB. This research not only advances our understanding of noise suppression mechanisms but also unveils the potential application of high-sensitivity PDs for real-time heart rate monitoring, showing promise for significant advancements in human health monitoring technology.</p>\",\"PeriodicalId\":84,\"journal\":{\"name\":\"Journal of Materials Chemistry C\",\"volume\":\" 27\",\"pages\":\" 9944-9949\"},\"PeriodicalIF\":5.1000,\"publicationDate\":\"2024-06-25\",\"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/d4tc01547a\",\"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/d4tc01547a","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 sensitive self-powered perovskite photodetector via noise suppression with poly(vinylidene fluoride–trifluoroethylene) doping for defect passivation†
The rapid advancement of self-powered perovskite photodetectors (PDs) in recent years has been hindered by numerous defects present in solution-processed perovskite polycrystalline films, significantly impacting device performance. Of particular concern is the influence of these defects on device noise, a critical parameter directly affecting detector sensitivity. This study proposes the incorporation of poly(vinylidene fluoride–trifluoroethylene) (PVT) additives into FA0.9MA0.05Cs0.05PbI3 perovskite precursor solutions to alleviate defect formation and enhance detector sensitivity. By optimizing the PVT concentration to 0.05 mg L−1, the photodetector (PD) demonstrates remarkable improvement, achieving a low noise power spectral density (0.1 pA Hz−1/2) and dark current density (2.12 nA cm−2) at zero bias. The device exhibits a notable decrease in defect density by an order of magnitude through the concurrent passivation of shallow-level defects with PVT. Additionally, the PD shows a high specific detection rate (D* = 2.8 × 1013 jones) at 700 nm, accompanied by a linear dynamic range exceeding 101 dB. This research not only advances our understanding of noise suppression mechanisms but also unveils the potential application of high-sensitivity PDs for real-time heart rate monitoring, showing promise for significant advancements in human health monitoring 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