Unraveling the reasons behind lead phthalocyanine acting as a good absorber for near-infrared sensitive devices.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
25 May 2022
25 May 2022
Historique:
received:
07
01
2022
accepted:
19
05
2022
entrez:
25
5
2022
pubmed:
26
5
2022
medline:
26
5
2022
Statut:
epublish
Résumé
Lead phthalocyanine (PbPc) is well known to be used as a good near-infrared (NIR) light absorber for organic solar cells (OSCs) and photodetectors. The monoclinic and triclinic phases have been understood to absorb the visible and NIR regions, respectively, so far. In the present study, we demonstrated from the absorption spectra and theoretical analysis that the visible band considerably originates from not only the monoclinic but also the amorphous and triclinic phases, and revealed the exciton dynamics in the PbPc film from static/time-resolved photoluminescence (PL), which are first reported. By comparing the external quantum efficiency between PbPc- and ZnPc-based OSCs in relation to their structure, morphology, and optical (absorption and PL) characteristics, we unraveled the reasons behind the PbPc film used as a good absorber for NIR-sensitive devices.
Identifiants
pubmed: 35614199
doi: 10.1038/s41598-022-12990-z
pii: 10.1038/s41598-022-12990-z
pmc: PMC9132886
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
8810Subventions
Organisme : Japan Society for Aeronautical and Space Sciences
ID : 19K05401
Organisme : Japan Society for the Promotion of Science
ID : 18H01826
Informations de copyright
© 2022. The Author(s).
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