气候变化领域集成服务门户(CCPortal): Metal chalcogenide quantum dot-sensitized 1D-based semiconducting heterostructures for optical-related applications

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DOI	10.1039/c8ee02143k
	Metal chalcogenide quantum dot-sensitized 1D-based semiconducting heterostructures for optical-related applications
	Yue S.; Li L.; McGuire S.C.; Hurley N.; Wong S.S.
发表日期	2019
ISSN	1754-5692
起始页码	1454
结束页码	1494
卷号	12 期号:5
英文摘要	In terms of understanding and tuning the optoelectronic behavior of 3rd generation solar cells, such as quantum dot (QD)-sensitized solar cells, QD-based heterostructures represent an excellent and relevant model system and opportunity for analyzing exciton dissociation and charge separation across a well-defined nanoscale interface. In particular, because QDs possess a tunable bandgap and the capability of initiating multi-electron exciton generation, QD-based components tend to be incorporated within optical-related devices, including photovoltaics, light emitting diodes, photoelectrochemical devices, photosensors, and phototransistors. The community has collectively expended significant effort in terms of creating, formulating, and optimizing novel forms of heterostructures comprised of QDs, immobilized by predominantly chemical means onto one-dimensional (1D) motifs, such as but not limited to carbon nanotubes (CNTs) and carbon nanofibers (CNFs). In so doing, it has been noted that key physical variables such as but not limited to (a) QD size, (b) QD loading and coverage, as well as (c) ligand identity can impact upon optoelectronic behavior of CNT-based heterostructures. In recent years, work has extended towards analyzing the optoelectronic 'cross-communication' between QDs with related, adjoining 1D semiconducting metal oxides, metal chalcogenides, and metal fluorides. In these examples, other important factors that also are relevant for determining the optical properties of these more generalized classes of heterostructures include parameters, such as (i) morphology, (ii) surface coverage, (iii) chemical composition of the underlying platform, (iv) QD identity, (v) luminescence properties of activating species, as well as (vi) the identity and concentration of dopant ions. In other words, to alter, manage, and manipulate the charge versus energy transfer channels within these materials in a deterministic manner requires basic insights into the close correlation and interplay between physical structure, chemical bonding, and observed performance. © 2019 The Royal Society of Chemistry.
语种	英语
scopus关键词	Carbon nanofibers; Carbon nanotubes; Chalcogenides; Chemical bonds; Energy transfer; Excitons; Fluorine compounds; Luminescence; Metals; Morphology; Nanocrystals; Nanostructured materials; Optical properties; Solar cells; Yarn; Chemical compositions; Exciton dissociation; Luminescence properties; Nanoscale interfaces; Photo-electrochemical device; Physical structures; Semi-conducting metal oxides; Sensitized solar cells; Semiconductor quantum dots; chemical bonding; chemical composition; electronic equipment; energy flow; fluoride; ligand; luminescence; metal; morphology; photovoltaic system; separation
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162903
作者单位	Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400, United States
推荐引用方式 GB/T 7714	Yue S.,Li L.,McGuire S.C.,et al. Metal chalcogenide quantum dot-sensitized 1D-based semiconducting heterostructures for optical-related applications[J],2019,12(5).
APA	Yue S.,Li L.,McGuire S.C.,Hurley N.,&Wong S.S..(2019).Metal chalcogenide quantum dot-sensitized 1D-based semiconducting heterostructures for optical-related applications.Energy and Environmental Science,12(5).
MLA	Yue S.,et al."Metal chalcogenide quantum dot-sensitized 1D-based semiconducting heterostructures for optical-related applications".Energy and Environmental Science 12.5(2019).