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

A. André, C. Theurer, J.D. Lauth, S. Maiti, M. Hodas, M. Samadi Khoshkhoo, S. Kinge, A. J. Meixner, F. Schreiber, L.D.A. Siebbeles, K. Braun, M. Scheele

Research output: Contribution to journalArticleScientificpeer-review

21 Citations (Scopus)
27 Downloads (Pure)

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.

Original languageEnglish
Pages (from-to)1700-1703
JournalChemical Communications
Volume53
Issue number10
DOIs
Publication statusPublished - 2017

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