A thermally activated and highly miscible dopant for n-type organic thermoelectrics.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
03 Jul 2020
03 Jul 2020
Historique:
received:
14
01
2020
accepted:
02
06
2020
entrez:
5
7
2020
pubmed:
6
7
2020
medline:
6
7
2020
Statut:
epublish
Résumé
N-doping plays an irreplaceable role in controlling the electron concentration of organic semiconductors thus to improve performance of organic semiconductor devices. However, compared with many mature p-doping methods, n-doping of organic semiconductor is still of challenges. In particular, dopant stability/processability, counterion-semiconductor immiscibility and doping induced microstructure non-uniformity have restricted the application of n-doping in high-performance devices. Here, we report a computer-assisted screening approach to rationally design of a triaminomethane-type dopant, which exhibit extremely high stability and strong hydride donating property due to its thermally activated doping mechanism. This triaminomethane derivative shows excellent counterion-semiconductor miscibility (counter cations stay with the polymer side chains), high doping efficiency and uniformity. By using triaminomethane, we realize a record n-type conductivity of up to 21 S cm
Identifiants
pubmed: 32620924
doi: 10.1038/s41467-020-17063-1
pii: 10.1038/s41467-020-17063-1
pmc: PMC7335177
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
3292Subventions
Organisme : National Natural Science Foundation of China (National Science Foundation of China)
ID : 21790360
Organisme : National Natural Science Foundation of China (National Science Foundation of China)
ID : 21722201
Organisme : National Natural Science Foundation of China (National Science Foundation of China)
ID : 21420102005
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