Principal Component Analysis (PCA)-Assisted Time-of-Flight Secondary-Ion Mass Spectrometry (ToF-SIMS): A Versatile Method for the Investigation of Self-Assembled Monolayers and Multilayers as Precursors for the Bottom-Up Approach of Nanoscaled Devices | Zendy

Markus Holzweber | Zendy; Thomas Heinrich | Zendy; Valentin Kunz | Zendy; Sebastián Richter | Zendy; Christoph H.-H. Traulsen | Zendy; Christoph A. Schalley | Zendy; Wolfgang E. S. Unger | Zendy

Open Access

Principal Component Analysis (PCA)-Assisted Time-of-Flight Secondary-Ion Mass Spectrometry (ToF-SIMS): A Versatile Method for the Investigation of Self-Assembled Monolayers and Multilayers as Precursors for the Bottom-Up Approach of Nanoscaled Devices

Author(s) -

Markus Holzweber,

Thomas Heinrich,

Valentin Kunz,

Sebastián Richter,

Christoph H.-H. Traulsen,

Christoph A. Schalley,

Wolfgang E. S. Unger

Publication year - 2014

Publication title -

analytical chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.117

H-Index - 332

eISSN - 1520-6882

pISSN - 0003-2700

DOI - 10.1021/ac500059a

Subject(s) - chemistry , principal component analysis , monolayer , self assembly , mass spectrometry , layer (electronics) , secondary ion mass spectrometry , time of flight , self assembled monolayer , component (thermodynamics) , analytical chemistry (journal) , nanotechnology , chromatography , organic chemistry , materials science , biochemistry , physics , artificial intelligence , computer science , thermodynamics

The production of high-quality self-assembled monolayers (SAMs) followed by layer-by-layer (LbL) self-assembly of macrocycles is essential for nanotechnology applications based on functional surface films. To help interpret the large amount of data generated by a standard ToF-SIMS measurement, principal component analysis (PCA) was used. For two examples, the advantages of a combination of ToF-SIMS and PCA for quality control and for the optimization of layer-by-layer self-assembly are shown. The first example investigates how different cleaning methods influence the quality of SAM template formation. The second example focuses on the LbL self-assembly of macrocycles and the corresponding stepwise surface modification.

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