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Highly Selective Non‐Covalent On‐Chip Functionalization of Layered Materials
Author(s) -
Tilmann Rita,
Weiß Corinna,
Cullen Conor P.,
Peters Lisanne,
Hartwig Oliver,
Höltgen Laura,
StimpelLindner Tanja,
Knirsch Kathrin C.,
McEvoy Niall,
Hirsch Andreas,
Duesberg Georg S.
Publication year - 2021
Publication title -
advanced electronic materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.25
H-Index - 56
ISSN - 2199-160X
DOI - 10.1002/aelm.202000564
Subject(s) - surface modification , materials science , nanotechnology , raman spectroscopy , monolayer , self assembled monolayer , passivation , perylene , substrate (aquarium) , covalent bond , chemical engineering , molecule , chemistry , layer (electronics) , organic chemistry , optics , physics , oceanography , geology , engineering
Non‐covalent functionalization of layered 2D materials is an essential tool to modify and fully harness their optical, electrical, and chemical properties. Herein, a facile method enabling the selective formation of self‐assembled monolayers (SAMs) of perylene bisimide (PBI) on transition metal dichalcogenides (TMDs), directly on the growth substrate (on‐chip), is presented. Laterally‐resolved infrared atomic force microscopy (AFM‐IR) and time‐of‐flight secondary ion mass spectrometry (TOF‐SIMS) are applied as superior techniques to gain detailed information beyond traditional surface analysis techniques, such as Raman spectroscopy and AFM, on TMD/PBI structures. The highly selective functionalization conducted in organic solution on MoS 2 and WSe 2 opens up a pathway to controllable, versatile functionalization of layered materials, which is highly sought after for its potential in passivation, tuning of properties and applications in optics, electronics, and (bio‐) sensing.