Publications

Surface temperature determination using long range thermal emission spectroscopy based on a first order scanning Fabry-Pérot interferometer

Published in Optics Express, 2022

Determination of the surface temperature of different materials based on thermographic imaging is a difficult task as the thermal emission spectrum is both temperature and emissivity dependent. Without prior knowledge of the emissivity of the object under investigation, it makes up a temperature-emissivity underdetermined system. This work demonstrates the possibility of recognizing specific materials from hyperspectral thermal images (HSTI) in the wavelength range from 8–14 µm. The hyperspectral images were acquired using a microbolometer sensor array in combination with a scanning 1st order Fabry-Pérot interferometer acting as a bandpass filter. Read more

Recommended citation: Anders Løchte Jørgensen, Mads Nibe Larsen, Victor Petrunin, Jakob Kjelstrup-Hansen, and Bjarke Jørgensen, "Surface temperature determination using long range thermal emission spectroscopy based on a first order scanning Fabry-Pérot interferometer," Opt. Express 30, 2186-2196 (2022) https://doi.org/10.1364/OE.441798

Work function difference of naphthyl end-capped oligothiophene in different crystal alignments studied by Kelvin probe force microscopy

Published in Organic Electronics, 2021

The performance of organic semiconductor devices is strongly affected by the interface energetics at the junctions between the constituent materials. A large group of organic semiconductors consists of rodlike small molecules that crystallize upon deposition with a molecular orientation dependent on the specifics of the molecule–molecule and molecule–substrate interactions. By means of Kelvin probe force microscopy (KPFM), this work studies naphthyl end-capped oligothiophene, 5,50-bis(naphth-2-yl)-2,20-bithiophene (NaT2), deposited on samples of pristine SiO₂ and samples of graphene-covered SiO₂. Read more

Recommended citation: Mads Nibe Larsen, Mads Svanborg Peters, Rodrigo Lemos-Silva, Demetrio A. Da Silva Filho, Bjarke Jørgensen, Ole Albrektsen, Jakob Kjelstrup-Hansen, "Work function difference of naphthyl end-capped oligothiophene in different crystal alignments studied by Kelvin probe force microscopy", Organic Electronics, 89, 106060 (2021) https://doi.org/10.1016/j.orgel.2020.106060