Review of quantum dots and nanoparticles-dispersed nematic liquid crystals: electro-optical and dielectric properties

IF 2.8 4区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Materials Science: Materials in Electronics Pub Date : 2025-02-13 DOI:10.1007/s10854-025-14339-4

Rajat Takkar, Vandna Sharma, Pooja, Pankaj Kumar

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引用次数: 0

Abstract

Quantum dots (QDs) and nanoparticles (NPs) including carbon dots (c-dots), nanospheres, nanowires, nanorods, etc. have garnered significant attention due to their unique optical and electronic properties, making them promising candidates for enhancing the functionality of liquid crystals (LCs)-based devices. Herein, this review provides an overview of the electro-optical (EO) and dielectric properties of these composites, highlighting the improvements in threshold and operating voltages; opaque and transparent states; contrast ratio; response time, etc. brought about by the inclusion of various types of NPs. Further sections are delved into the synthesis and dispersion methods of QDs in LCs, along with the challenges and solutions associated with achieving stable and uniform dispersions. In addition, the potential applications of QDs, c-dots, NPs, and nanorods in nematic LCs as dopants are explored, examining their impact on the performance characteristics of the composites. The integration of these dopants into nematic LCs have been discussed and showed the enhancement of conductivity, dielectric anisotropy, and dielectric strength, and reduces the field screening effect, paving the way for their application in various optoelectronic devices such as quantum computing, photovoltaic devices, LC displays (LCDs), and light-emitting diodes (LEDs). This review provides valuable insights into the utilization of QDs and related NPs with nematic LC composites, underscoring their potential for sustainability and innovation in advanced energy-efficient optoelectronic applications.

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来源期刊

Journal of Materials Science: Materials in Electronics 工程技术-材料科学：综合

CiteScore

5.00

自引率

7.10%

发文量

1931

审稿时长

2 months

期刊介绍： The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.