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*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)
31 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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