Issue 10, 2017

Structure, transport and photoconductance of PbS quantum dot monolayers functionalized with a copper phthalocyanine derivative

Abstract

We simultaneously surface-functionalize PbS nanocrystals with Cu 4,4′,4′′,4′′′-tetraaminophthalocyanine and assemble this hybrid material into macroscopic monolayers. Electron microscopy and X-ray scattering reveal a granular mesocrystalline structure with strong coherence between the atomic lattice and the superlattice of nanocrystals within each domain. Terahertz spectroscopy and field-effect transistor measurements indicate efficient coupling of holes throughout the hybrid thin film, in conjunction with a pronounced photoresponse. We demonstrate the potential of this material for optoelectronic applications by fabricating a light-effect transistor.

Graphical abstract: Structure, transport and photoconductance of PbS quantum dot monolayers functionalized with a copper phthalocyanine derivative

Supplementary files

Article information

Article type
Communication
Submitted
28 sept. 2016
Accepted
12 janv. 2017
First published
12 janv. 2017

Chem. Commun., 2017,53, 1700-1703

Structure, transport and photoconductance of PbS quantum dot monolayers functionalized with a copper phthalocyanine derivative

A. André, C. Theurer, J. Lauth, S. Maiti, M. Hodas, M. Samadi Khoshkhoo, S. Kinge, A. J. Meixner, F. Schreiber, L. D. A. Siebbeles, K. Braun and M. Scheele, Chem. Commun., 2017, 53, 1700 DOI: 10.1039/C6CC07878H

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