利用氧化石墨烯分散研究反铁电液晶的光致发光行为

IF 2.4 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2025-05-02 DOI:10.1016/j.cap.2025.05.001

Shishir Shukla , Pankaj Kumar Tripathi , Ayushi Rastogi , E. Shakerzadeh , V. Singh , V.K. Mishra , T. Yadav , M. Tiwari , A.K. Misra

{"title":"利用氧化石墨烯分散研究反铁电液晶的光致发光行为","authors":"Shishir Shukla , Pankaj Kumar Tripathi , Ayushi Rastogi , E. Shakerzadeh , V. Singh , V.K. Mishra , T. Yadav , M. Tiwari , A.K. Misra","doi":"10.1016/j.cap.2025.05.001","DOIUrl":null,"url":null,"abstract":"<div><div>The photoluminescence properties of antiferroelectric liquid crystal (AFLC) dispersed with graphene oxide (GO) were studied. AFLC-based composites were prepared by dispersing various weight concentrations (0.1 % and 0.3 % wt./wt.) of GO into AFLC. UV absorbance studies were performed using spectrum, time scan, and overlay modes. The decrease in UV absorbance was observed in all of these modes. Red shifts in absorbance bands were observed for both pure AFLC sample and GO/AFLC composite. The UV absorbance maxima for AFLC dispersed with GO shifted from 317.27 nm to 324.57 nm. This shift was attributed to the varying concentrations of GO in the AFLC medium. A significant improvement in the luminescence intensity of AFLC dispersed with GO nanoparticles mixtures was observed. The luminescence intensity increased from 0.3 (pure AFLC) to 1.0 (0.3 % wt./wt.). Furthermore, the luminescence intensity of the AFLC mixture was observed to increase with the concentration of GO for the fixed weight of the AFLC sample.</div></div>","PeriodicalId":11037,"journal":{"name":"Current Applied Physics","volume":"75 ","pages":"Pages 21-27"},"PeriodicalIF":2.4000,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Exploring the photoluminescence behavior of antiferroelectric liquid crystals through graphene oxide dispersion\",\"authors\":\"Shishir Shukla , Pankaj Kumar Tripathi , Ayushi Rastogi , E. Shakerzadeh , V. Singh , V.K. Mishra , T. Yadav , M. Tiwari , A.K. Misra\",\"doi\":\"10.1016/j.cap.2025.05.001\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The photoluminescence properties of antiferroelectric liquid crystal (AFLC) dispersed with graphene oxide (GO) were studied. AFLC-based composites were prepared by dispersing various weight concentrations (0.1 % and 0.3 % wt./wt.) of GO into AFLC. UV absorbance studies were performed using spectrum, time scan, and overlay modes. The decrease in UV absorbance was observed in all of these modes. Red shifts in absorbance bands were observed for both pure AFLC sample and GO/AFLC composite. The UV absorbance maxima for AFLC dispersed with GO shifted from 317.27 nm to 324.57 nm. This shift was attributed to the varying concentrations of GO in the AFLC medium. A significant improvement in the luminescence intensity of AFLC dispersed with GO nanoparticles mixtures was observed. The luminescence intensity increased from 0.3 (pure AFLC) to 1.0 (0.3 % wt./wt.). Furthermore, the luminescence intensity of the AFLC mixture was observed to increase with the concentration of GO for the fixed weight of the AFLC sample.</div></div>\",\"PeriodicalId\":11037,\"journal\":{\"name\":\"Current Applied Physics\",\"volume\":\"75 \",\"pages\":\"Pages 21-27\"},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2025-05-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Current Applied Physics\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1567173925000938\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Current Applied Physics","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1567173925000938","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

摘要

研究了氧化石墨烯分散的反铁电液晶（AFLC）的光致发光特性。将不同重量浓度（0.1%和0.3%重量/重量）的氧化石墨烯分散到AFLC中，制备了AFLC基复合材料。紫外吸收研究使用光谱、时间扫描和覆盖模式进行。在所有这些模式下都观察到紫外吸光度的降低。在纯AFLC样品和氧化石墨烯/AFLC复合材料中均观察到吸光度带的红移。经氧化石墨烯分散的AFLC的紫外吸光度最大值由317.27 nm变为324.57 nm。这种变化归因于AFLC介质中氧化石墨烯的浓度变化。纳米氧化石墨烯分散后，AFLC的发光强度显著提高。发光强度由0.3（纯AFLC）提高到1.0 （0.3% wt./wt.）。此外，对于固定重量的AFLC样品，观察到AFLC混合物的发光强度随氧化石墨烯浓度的增加而增加。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Exploring the photoluminescence behavior of antiferroelectric liquid crystals through graphene oxide dispersion

查看原文本刊更多论文

Exploring the photoluminescence behavior of antiferroelectric liquid crystals through graphene oxide dispersion

The photoluminescence properties of antiferroelectric liquid crystal (AFLC) dispersed with graphene oxide (GO) were studied. AFLC-based composites were prepared by dispersing various weight concentrations (0.1 % and 0.3 % wt./wt.) of GO into AFLC. UV absorbance studies were performed using spectrum, time scan, and overlay modes. The decrease in UV absorbance was observed in all of these modes. Red shifts in absorbance bands were observed for both pure AFLC sample and GO/AFLC composite. The UV absorbance maxima for AFLC dispersed with GO shifted from 317.27 nm to 324.57 nm. This shift was attributed to the varying concentrations of GO in the AFLC medium. A significant improvement in the luminescence intensity of AFLC dispersed with GO nanoparticles mixtures was observed. The luminescence intensity increased from 0.3 (pure AFLC) to 1.0 (0.3 % wt./wt.). Furthermore, the luminescence intensity of the AFLC mixture was observed to increase with the concentration of GO for the fixed weight of the AFLC sample.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.