Molecular arrangements in the first monolayer of Cu-phthalocyanine on In2O3(111)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0198673" target="_blank" >RIV/00216305:26620/26:0198673 - isvavai.cz</a>

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2025/tc/d5tc01394a" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2025/tc/d5tc01394a</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d5tc01394a" target="_blank" >10.1039/d5tc01394a</a>

Result language

angličtina

Original language name

Molecular arrangements in the first monolayer of Cu-phthalocyanine on In2O3(111)

Original language description

Well-ordered organic molecular layers on oxide surfaces are key for organic electronics. Using a combination of scanning tunneling microscopy (STM) and non-contact atomic force microscopy (nc-AFM) we probe the structures of copper phthalocyanine (CuPc) on In2O3, a model for a prototypical transparent conductive oxide (TCO). These scanning-probe images allow the direct determination of the adsorption site and distortions of the molecules, which are corroborated by DFT calculations. Isolated CuPc molecules adsorb in a flat, slightly tilted geometry in three symmetry-equivalent configurations on the stoichiometric In2O3(111) surface. Increasing the coverage leads to densely packed 1D chains oriented along < 110 > directions, which dissolve into a highly ordered (2 x 2) superstructure upon increasing the CuPc density to 3/4 per surface unit cell. At a coverage of one CuPc per surface unit cell, a densely packed (1 x 1) superstructure fully covers the surface. The molecules still assume the same site and orientation as before, but they partially overlap to accommodate the high packing density, leading to bending of the molecules. These results are compared to the behavior of CoPc on In2O3(111). In summary, we demonstrate that a uniform first layer of metal-phthalocyanine molecules can be realized on the In2O3(111) surface when using the proper metal atom in the molecule.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

<a href="/en/project/EH22_010%2F0002552" target="_blank" >EH22_010/0002552: IMPROVE V</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Materials Chemistry C

ISSN

2050-7526

e-ISSN

2050-7534

Volume of the periodical

13

Issue of the periodical within the volume

34

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

17650-17661

UT code for WoS article

001537346100001

EID of the result in the Scopus database

2-s2.0-105014324926