{"title":"In-Plane Aligned Colloidal Quantum Wells via Electrophoretic Deposition for Directional Emission","authors":"Chengxi Lyu, , , Chenlin Wang, , , Haixiao Zhao, , and , Yuan Gao*, ","doi":"10.1021/acsanm.5c03694","DOIUrl":null,"url":null,"abstract":"<p >Directional emission is highly desirable for a wide range of photonic and optoelectronic applications, such as displays, lasers, and optical communications. II–VI Colloidal quantum wells (CQWs, or nanoplatelets), owing to their anisotropic shape and strong quantum confinement, inherently support directional emission when properly aligned. Here, we demonstrate a reliable and convenient electrophoretic deposition method to achieve in-plane alignment of CQWs on substrates. This technique enables controlled placement of CQWs exclusively in electrode-defined regions, offering both spatial selectivity and emission directionality, which provides a scalable and straightforward route for integrating anisotropic quantum well emitters into optoelectronic device architectures.</p>","PeriodicalId":6,"journal":{"name":"ACS Applied Nano Materials","volume":"8 39","pages":"18716–18722"},"PeriodicalIF":5.5000,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Nano Materials","FirstCategoryId":"88","ListUrlMain":"https://pubs.acs.org/doi/10.1021/acsanm.5c03694","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}
引用次数: 0
Abstract
Directional emission is highly desirable for a wide range of photonic and optoelectronic applications, such as displays, lasers, and optical communications. II–VI Colloidal quantum wells (CQWs, or nanoplatelets), owing to their anisotropic shape and strong quantum confinement, inherently support directional emission when properly aligned. Here, we demonstrate a reliable and convenient electrophoretic deposition method to achieve in-plane alignment of CQWs on substrates. This technique enables controlled placement of CQWs exclusively in electrode-defined regions, offering both spatial selectivity and emission directionality, which provides a scalable and straightforward route for integrating anisotropic quantum well emitters into optoelectronic device architectures.
期刊介绍：
ACS Applied Nano Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics and biology relevant to applications of nanomaterials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important applications of nanomaterials.
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