We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Repairing Nanoparticle Surface Defects.
- Authors
Marino, Emanuele; Kodger, Thomas E.; Crisp, Ryan W.; Timmerman, Dolf; MacArthur, Katherine E.; Heggen, Marc; Schall, Peter
- 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.
- Subjects
SEMICONDUCTOR nanoparticles; LIGAND analysis; CRYSTAL structure; ANALYTICAL chemistry; OPTOELECTRONIC devices
- Publication
Angewandte Chemie, 2017, Vol 129, Issue 44, p13983
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201705685