Journal Article

FZJ-2018-00785

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Repairing Nanoparticle Surface Defects

Marino, E. ; Kodger, T. E. ; Crisp, R. W. ; Timmerman, D. ; MacArthur, K. E.FZJ* ; Heggen, M.FZJ* ; Schall, P. (Corresponding author)

2017
Wiley-VCH65543 Weinheim

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Please use a persistent id in citations: http://hdl.handle.net/2128/16701  doi:10.1002/ange.201705685

Abstract: Solar devices based on semiconductor nanoparticles require the use of conductive ligands; however, replacing the native, insulating ligands with conductive metal chalcogenide complexes introduces structural defects within the crystalline nanostructure that act as traps for charge carriers. We utilized atomically thin semiconductor nanoplatelets as a convenient platform for studying, both microscopically and spectroscopically, the development of defects during ligand exchange with the conductive ligands Na4SnS4 and (NH4)4Sn2S6. These defects can be repaired via mild chemical or thermal routes, through the addition of L-type ligands or wet annealing, respectively. This results in a higher-quality, conductive, colloidally stable nanomaterial that may be used as the active film in optoelectronic devices.

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Contributing Institute(s):

1. Physik Nanoskaliger Systeme (ER-C-1)
2. Mikrostrukturforschung (PGI-5)

Research Program(s):

1. 143 - Controlling Configuration-Based Phenomena (POF3-143) (POF3-143)

Appears in the scientific report 2017

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Database coverage:
; ; ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS

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