南方科技大学知识苑(SUSTech KC): Impacts of graphene quantum dots on the optical, electrical and thermal properties of the archetypal conducting polymer PEDOT:PSS

题名	Impacts of graphene quantum dots on the optical, electrical and thermal properties of the archetypal conducting polymer PEDOT:PSS
作者	Kong, Minghua1,2 ; Garriga, Miquel 2; Reparaz, Juan Sebastian ; Alonso, Maria Isabel 1,2
通讯作者	Kong, Minghua; Alonso, Maria Isabel
发表日期	2024-07-01
DOI	10.1016/j.rio.2024.100737
发表期刊	RESULTS IN OPTICS 影响因子和分区
EISSN	2666-9501
卷号	16
摘要	We investigated the optical properties and thermal conductivity of blade-coated graphene quantum dots (GQDs)/PEDOT:PSS hybrid thin films by varying the content of GQDs. The optical properties were determined by spectroscopic ellipsometry in the range of 1.2-5.5 eV. Two dispersion models were used to analyze the optical properties of the films: the Bruggeman effective medium approximation (BEMA) for the hybrid films, and the Drude model combined with a Lorentzian oscillator for both the pure and the hybrid films, which provides insight into their electrical properties. As a novel finding, we observed that the optical anisotropy of PEDOT:PSS (Aldrich 483095) films is reduced after incorporating GQDs. Moreover, dedoping of the PEDOT chains is demonstrated upon increasing the content of GQDs within the hybrid films. Furthermore, the thermal conductivity shows a two-fold decrease as the GQDs fraction increases from 0 to 10 wt%. This result is understood considering that the GQDs act as local scattering centers, resulting in a decrease of the thermal conductivity.
关键词	Graphene quantum dots PEDOT:PSS Optical anisotropy Thermal conductivity Bruggeman effective medium approximation Drude model
相关链接	[来源记录]
收录类别	ESCI
语种	英语
学校署名	第一 ; 通讯
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:001310366200001
出版者	ELSEVIER
来源库	Web of Science
引用统计
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/828945
专题	理学院_物理系
作者单位	1.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China 2.ICMAB CSIC, Inst Ciencia Mat Barcelona, Campus UAB, Bellaterra 08193, Spain
第一作者单位	物理系
通讯作者单位	物理系
第一作者的第一单位	物理系
推荐引用方式 GB/T 7714	Kong, Minghua,Garriga, Miquel,Reparaz, Juan Sebastian,et al. Impacts of graphene quantum dots on the optical, electrical and thermal properties of the archetypal conducting polymer PEDOT:PSS[J]. RESULTS IN OPTICS,2024,16.
APA	Kong, Minghua,Garriga, Miquel,Reparaz, Juan Sebastian,&Alonso, Maria Isabel.(2024).Impacts of graphene quantum dots on the optical, electrical and thermal properties of the archetypal conducting polymer PEDOT:PSS.RESULTS IN OPTICS,16.
MLA	Kong, Minghua,et al."Impacts of graphene quantum dots on the optical, electrical and thermal properties of the archetypal conducting polymer PEDOT:PSS".RESULTS IN OPTICS 16(2024).