Surface Structure Modification of ZnO and the Impact on Electronic Properties.
File(s)
Accepted version
Author(s)
Hewlett, RM
McLachlan, MA
Type
Journal Article
Abstract
Zinc oxide (ZnO) is a widely utilized, versatile material implemented in a diverse range of technological applications, particularly in optoelectronic devices, where its inherent transparency, tunable electronic properties, and accessible nanostructures can be combined to confer superior device properties. ZnO is a complex material with a rich and intricate defect chemistry, and its properties can be extremely sensitive to processing methods and conditions; consequently, surface modification of ZnO using both inorganic and organic species has been explored to control and regulate its surface properties, particularly at heterointerfaces in electronic devices. Here, the properties of ZnO are described in detail, particularly its surface chemistry, along with the role of defects in governing its electronic properties, and methods employed to modulate the behavior of as-grown ZnO. An outline is also given on how the native and modified oxide interact with molecular materials. To illustrate the diverse range of surface modification methods and their subsequent influence on electronic properties, a comprehensive review of the modification of ZnO surfaces at molecular interfaces in hybrid photovoltaic (hPV) and organic photovoltaic (OPV) devices is presented. This is a case study rather than a progress report, aiming to highlight the progress made toward controlling and altering the surface properties of ZnO, and to bring attention to the ways in which this may be achieved by using various interfacial modifiers (IMs).
Date Issued
2016-03-03
Date Acceptance
2015-10-03
Citation
Advanced Materials, 2016, 28 (20), pp.3893-3921
ISSN
1521-4095
Publisher
Wiley
Start Page
3893
End Page
3921
Journal / Book Title
Advanced Materials
Volume
28
Issue
20
Copyright Statement
This is the peer reviewed version of the following article: Hewlett, R. M. and McLachlan, M. A. (2016), Surface Structure Modification of ZnO and the Impact on Electronic Properties. Adv. Mater., which has been published in final form at https://dx.doi.org/10.1002/adma.201503404. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
Subjects
Nanoscience & Nanotechnology
02 Physical Sciences
03 Chemical Sciences
09 Engineering
Notes
pmid: 26936217
Publication Status
Published