Thin Film Analysis by Nanomechanical Infrared Spectroscopy | Zendy

Andrea Casci Ceccacci | Zendy; Alberto Cagliani | Zendy; Paolo Marizza | Zendy; Silvan Schmid | Zendy; Anja Boisen | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Thin Film Analysis by Nanomechanical Infrared Spectroscopy

Author(s) -

Andrea Casci Ceccacci,

Alberto Cagliani,

Paolo Marizza,

Silvan Schmid,

Anja Boisen

Publication year - 2019

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.9b00276

Subject(s) - infrared , materials science , infrared spectroscopy , fourier transform infrared spectroscopy , thin film , characterization (materials science) , spectroscopy , polyvinylpyrrolidone , attenuated total reflection , analytical chemistry (journal) , nanometre , layer (electronics) , optics , optoelectronics , nanotechnology , chemistry , physics , composite material , polymer chemistry , chromatography , organic chemistry , quantum mechanics

There is a fundamental need for techniques for thin film characterization. The current options for obtaining infrared (IR) spectra typically suffer from low signal-to-noise-ratios (SNRs) for sample thicknesses confined to a few nanometers. We present nanomechanical infrared spectroscopy (NAM-IR), which enables the measurement of a complete infrared fingerprint of a polyvinylpyrrolidone (PVP) layer as thin as 20 nm with an SNR of 307. Based on the characterization of the given NAM-IR setup, a minimum film thickness of only 160 pm of PVP can be analyzed with an SNR of 2. Compared to a conventional attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) system, NAM-IR yields an SNR that is 43 times larger for a 20 nm-thick PVP layer and requires only a fraction of the acquisition time. These results pave the way for NAM-IR as a highly sensitive, fast, and practical tool for IR analysis of polymer thin films.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research