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Electrical conduction modulated by light in a cobalt and naphthalene diimide metal-organic framework

Castaldelli, E, Jayawardena, KDGI, Cox, David, Clarkson, GJ, Walton, RI, Le-Quang, L, Chauvin, J, Silva, S and Demets, GJ-F (2017) Electrical conduction modulated by light in a cobalt and naphthalene diimide metal-organic framework Nature Communications, 8, 2139.

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Metal-organic frameworks (MOFs) have emerged as an exciting class of porous materials that can be structurally designed by choosing particular components according to desired applications. De- spite the wide interest in and many potential applications of MOFs, such as in gas storage, catal- ysis, sensing and drug delivery, electrical semiconductivity and its control is still rare. The use and fabrication of electronic devices with MOF-based components has not been widely explored, despite the significant progress of these components made in recent years. Here we report the syn- thesis and properties of a new highly crystalline, electrochemically active, cobalt and naphthalene diimide-based MOF that is an efficient electrical semiconductor and has a broad absorption spec- trum, from 300 nm to 2500 nm. Its semiconductivity was determined by direct voltage bias using a four-point device, and it features a wavelength dependant photoconductive-photoresistive dual behaviour, with a very high responsivity of 2.5×105 A W−1.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Date : 15 December 2017
Identification Number : 10.1038/s41467-017-02215-7
Copyright Disclaimer : © The Author(s) 2017, Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit licenses/by/4.0/.
Depositing User : Melanie Hughes
Date Deposited : 25 Jan 2018 13:40
Last Modified : 25 Jan 2018 13:40

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