{"title":"利用还原氧化石墨烯纳米片的纳米结构实现光和湿度传感特性","authors":"","doi":"10.1016/j.diamond.2024.111563","DOIUrl":null,"url":null,"abstract":"<div><p>The present study explores the photo- and humidity sensing properties of reduced graphene oxide (rGO) sheets at room temperature. Graphite powder was chemically oxidized using a modified Hummer's approach to produce rGO sheets. The physicochemical traits of the rGO sensor were analyzed by various characterization techniques, including X-ray diffraction (XRD), UV–vis absorption spectra, Raman spectroscopy, field emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HR-TEM). Raman spectroscopic micrograph exhibits two vibrational modes: D-band at 1329 and G-band at 1587 cm<sup>−1</sup>. The rGO photosensor shows a maximum responsivity of about 7.22 AW<sup>−1</sup> with quick response and recovery times. The sensor showed a maximum sensitivity of 37 % in humid environments, with response and recovery durations of 44 s and 126 s, respectively. The rGO-based sensor showed excellent photosensitivity, exceptional stability, and a better response to photo and humid environments. The excellent performance of rGO sheets proves to be a promising functional material in sensing devices.</p></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":null,"pages":null},"PeriodicalIF":4.3000,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Nanoarchitectonics with reduced graphene oxide nanosheets for photo- and humidity sensing properties\",\"authors\":\"\",\"doi\":\"10.1016/j.diamond.2024.111563\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The present study explores the photo- and humidity sensing properties of reduced graphene oxide (rGO) sheets at room temperature. Graphite powder was chemically oxidized using a modified Hummer's approach to produce rGO sheets. The physicochemical traits of the rGO sensor were analyzed by various characterization techniques, including X-ray diffraction (XRD), UV–vis absorption spectra, Raman spectroscopy, field emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HR-TEM). Raman spectroscopic micrograph exhibits two vibrational modes: D-band at 1329 and G-band at 1587 cm<sup>−1</sup>. The rGO photosensor shows a maximum responsivity of about 7.22 AW<sup>−1</sup> with quick response and recovery times. The sensor showed a maximum sensitivity of 37 % in humid environments, with response and recovery durations of 44 s and 126 s, respectively. The rGO-based sensor showed excellent photosensitivity, exceptional stability, and a better response to photo and humid environments. The excellent performance of rGO sheets proves to be a promising functional material in sensing devices.</p></div>\",\"PeriodicalId\":11266,\"journal\":{\"name\":\"Diamond and Related Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2024-09-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Diamond and Related Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0925963524007763\",\"RegionNum\":3,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, COATINGS & FILMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Diamond and Related Materials","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0925963524007763","RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
Nanoarchitectonics with reduced graphene oxide nanosheets for photo- and humidity sensing properties
The present study explores the photo- and humidity sensing properties of reduced graphene oxide (rGO) sheets at room temperature. Graphite powder was chemically oxidized using a modified Hummer's approach to produce rGO sheets. The physicochemical traits of the rGO sensor were analyzed by various characterization techniques, including X-ray diffraction (XRD), UV–vis absorption spectra, Raman spectroscopy, field emission scanning electron microscopy (FESEM), and high-resolution transmission electron microscopy (HR-TEM). Raman spectroscopic micrograph exhibits two vibrational modes: D-band at 1329 and G-band at 1587 cm−1. The rGO photosensor shows a maximum responsivity of about 7.22 AW−1 with quick response and recovery times. The sensor showed a maximum sensitivity of 37 % in humid environments, with response and recovery durations of 44 s and 126 s, respectively. The rGO-based sensor showed excellent photosensitivity, exceptional stability, and a better response to photo and humid environments. The excellent performance of rGO sheets proves to be a promising functional material in sensing devices.
期刊介绍：
DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices.
The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.
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