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Issue 10, 2017
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Structure, transport and photoconductance of PbS quantum dot monolayers functionalized with a copper phthalocyanine derivative

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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

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Publication details

The article was received on 28 Sep 2016, accepted on 12 Jan 2017 and first published on 12 Jan 2017


Article type: Communication
DOI: 10.1039/C6CC07878H
Chem. Commun., 2017,53, 1700-1703

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    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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