Sökning: WFRF:(Choi Joong Il Jake) >
Surface Termination...
-
Choi, Joong Il JakeInstitute for Basic Science, KOR
(författare)
Surface Termination-Dependent Nanotribological Properties of Single-Crystal MAPbBr(3) Surfaces
- Artikel/kapitelEngelska2020
Förlag, utgivningsår, omfång ...
-
2019-12-17
-
AMER CHEMICAL SOC,2020
-
printrdacarrier
Nummerbeteckningar
-
LIBRIS-ID:oai:DiVA.org:kau-83174
-
https://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-83174URI
-
https://doi.org/10.1021/acs.jpcc.9b10191DOI
Kompletterande språkuppgifter
-
Språk:engelska
-
Sammanfattning på:engelska
Ingår i deldatabas
Klassifikation
-
Ämneskategori:ref swepub-contenttype
-
Ämneskategori:art swepub-publicationtype
Anmärkningar
-
Atomistic characterization of surface termination and the corresponding mechanical properties of single-crystal methylammonium lead tribromide (MAPbBr(3)) are performed using combined atomic force microscopy (AFM) measurements and density functional theory (DFT) calculations. A clean MAPbBr(3) surface is obtained by in situ cleavage in ultrahigh vacuum at room temperature, and the subsequent AFM measurements of the as-cleaved MAPbBr(3) exhibit the coexistence of two different surface terrace types with step height differences corresponding to about half the thickness of a PbI6 octahedron layer. Concurrent friction force microscopy measurements show that the two surfaces result in two distinct friction values. Based on DFT calculations, we attribute the higher-friction and lower-friction surfaces to MABr-terminated flat and PbBr2-terminated vacant surface terminations, respectively. The calculated electronic band structures of the various MABr- and PbBr2-terminated surfaces show that the midgap states are absent, revealing the defect-tolerant nature of the ideal single-crystal MAPbBr(3) surfaces.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
-
Khan, Muhammad EjazKAIST, KOR;National University of Technology, PAK
(författare)
-
Hawash, ZaferOkinawa Institute of Science and Technology, JPN(Swepub:kau)zafehawa
(författare)
-
Lee, HyunhwaInstitute for Basic Science, KOR; KAIST, KOR
(författare)
-
Ono, Luis K.Okinawa Institute of Science and Technology, JPN
(författare)
-
Qi, YabingOkinawa Institute of Science and Technology Graduate University, JPN
(författare)
-
Kim, Yong-HoonKAIST, KOR
(författare)
-
Park, Jeong YoungInstitute for Basic Science, KOR
(författare)
-
Institute for Basic Science, KORKAIST, KOR;National University of Technology, PAK
(creator_code:org_t)
Sammanhörande titlar
-
Ingår i:The Journal of Physical Chemistry C: AMER CHEMICAL SOC124:2, s. 1484-14911932-74471932-7455
Internetlänk
Hitta via bibliotek
Till lärosätets databas