Ligands of Nanoparticles and Their Influence on the Morphologies of Nanoparticle-Based Films.

IF 4.4 3区 材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY Nanomaterials Pub Date : 2024-10-21 DOI:10.3390/nano14201685
Jungwook Choi, Byung Hyo Kim
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Abstract

Nanoparticle-based thin films are increasingly being used in various applications. One of the key factors that determines the properties and performances of these films is the type of ligands attached to the nanoparticle surfaces. While long-chain surfactants, such as oleic acid, are commonly employed to stabilize nanoparticles and ensure high monodispersity, these ligands often hinder charge transport due to their insulating nature. Although thermal annealing can remove the long-chain ligands, the removal process often introduces defects such as cracks and voids. In contrast, the use of short-chain organic or inorganic ligands can minimize interparticle distance, improving film conductivity, though challenges such as incomplete ligand exchange and residual barriers remain. Polymeric ligands, especially block copolymers, can also be employed to create films with tailored porosity. This review discusses the effects of various ligand types on the morphology and performance of nanoparticle-based films, highlighting the trade-offs between conductivity, structural integrity, and functionality.

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纳米粒子配体及其对纳米粒子薄膜形态的影响。
基于纳米粒子的薄膜正越来越多地应用于各种领域。决定这些薄膜特性和性能的关键因素之一是附着在纳米粒子表面的配体类型。虽然长链表面活性剂(如油酸)通常用于稳定纳米粒子并确保高单分散性,但由于其绝缘性,这些配体通常会阻碍电荷传输。虽然热退火可以去除长链配体,但去除过程往往会产生裂缝和空隙等缺陷。相比之下,使用短链有机或无机配体可以最大限度地减少粒子间的距离,从而提高薄膜的导电性,但配体交换不完全和残余障碍等难题依然存在。聚合物配体,尤其是嵌段共聚物,也可用于制造具有定制孔隙率的薄膜。本综述讨论了各种配体类型对基于纳米粒子的薄膜的形态和性能的影响,重点介绍了导电性、结构完整性和功能性之间的权衡。
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来源期刊
Nanomaterials
Nanomaterials NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
8.50
自引率
9.40%
发文量
3841
审稿时长
14.22 days
期刊介绍: Nanomaterials (ISSN 2076-4991) is an international and interdisciplinary scholarly open access journal. It publishes reviews, regular research papers, communications, and short notes that are relevant to any field of study that involves nanomaterials, with respect to their science and application. Thus, theoretical and experimental articles will be accepted, along with articles that deal with the synthesis and use of nanomaterials. Articles that synthesize information from multiple fields, and which place discoveries within a broader context, will be preferred. There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental or methodical details, or both, must be provided for research articles. Computed data or files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. Nanomaterials is dedicated to a high scientific standard. All manuscripts undergo a rigorous reviewing process and decisions are based on the recommendations of independent reviewers.
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