ZnO-Nanocarbon Core-Shell Type Hybrid Quantum Dots

  • Won Kook Choi

Part of the SpringerBriefs in Applied Sciences and Technology book series (BRIEFSAPPLSCIENCES)

Also part of the Nanoscience and Nanotechnology book sub series (BRIEFSNANOSCIENCE)

Table of contents

  1. Front Matter
    Pages i-x
  2. Won Kook Choi
    Pages 1-17

About this book

Introduction

This book offers a comprehensive overview of ZnO-nano carbon core shell hybrid issues. There is significant interest in metal oxide/nanocarbon hybrid functional materials in the field of energy conversion and storage as electrode materials for supercapacitors, Li ion secondary battery, electrocatalysts for water splitting, and optoelectronic devices such as light emitting diodes and solar photovoltaic cells. Despite efforts to manipulate more uniform metal oxide-nanocarbon nanocomposite structures, they have shown poor performance because they are randomly scattered and non-uniformly attached to the nanocarbon surface. For higher and more effective performance of the hybrid structure, 3D conformal coating on metal oxides are highly desirable.

In the first part of the book, the physical and chemical properties of ZnO and nanocarbons and the state-of-the-art in related research are briefly summarized. In the next part, the 3D conformal coating synthetic processes of ZnO templated nanocarbon hybrid materials such as ZnO-graphene,-C60, single-walled (SWCNT) are introduced with the aid of schematic illustrations. Analysis of their chemical bonding and structure are also presented. In the final section, several applications are presented: UV photovoltaic cells and photoelectrochemical anodes for water splitting using ZnO-C60 and ZnO-graphene, white-light-emitting diodes based on ZnO-graphene quantum dots(GQDs), inverted solar cells using ligand-modified ZnO-graphene QDs, and P(VDF-TrFE) copolymer with mixed with nano-ring SWCNT.

The book describes how strong anchoring bonds between a ZnO core and carbon nanomaterial shell will ultimately prevail over the main drawbacks of ZnO with high charge recombination and poor electrochemical stability in liquid solutions. Due to the moderate energy states and excellent electric properties of the nanocarbons, ultrafast charge carrier transport from the ZnO core to the nanocarbon shell is guaranteed with the use of the photoluminescence (PL) lifetime measurement.

Given the growing interest and significance of future research in optoelectronic and electrochemical devices applications, the contents are very timely. This book is targeted towards researchers looking for highly efficient metal oxide-nanocarbon hybrid functional materials in the fields of nano-optoelectronics, photoelectrochemistry, energy storage and conversion.

Keywords

ZnO-templated nanocarbon hybrid synthetic method ZnO-nanocarbon core-shell hybrid quantum dots ZnO–graphene quantum dots for white-light-emitting diodes ZnO-C60 photoelectrochemical anode Nano-ring single-walled CNT

Authors and affiliations

  • Won Kook Choi
    • 1
  1. 1.Materials and Life Science Research DiviKorea Institute of Science and TechnologSeoulKorea (Republic of)

Bibliographic information

  • DOI https://doi.org/10.1007/978-981-10-0980-8
  • Copyright Information The Author(s) 2017
  • Publisher Name Springer, Singapore
  • eBook Packages Engineering
  • Print ISBN 978-981-10-0979-2
  • Online ISBN 978-981-10-0980-8
  • Series Print ISSN 2191-530X
  • Series Online ISSN 2191-5318
  • About this book

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