Detail publikace

A SUB-nL DIFFERENTIAL SCANNING CALORIMETRY CHIP FOR LIQUID CRYSTAL PHASE TRANSITION CHARACTERIZATION

NI, S. BU, Y. ZHU, H. VASHCHENKO, V.V. SRIVASTAVA, A.K. NEUŽIL, P. YOBAS, L.

Originální název

A SUB-nL DIFFERENTIAL SCANNING CALORIMETRY CHIP FOR LIQUID CRYSTAL PHASE TRANSITION CHARACTERIZATION

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

This paper presents a sub-nL differential scanning calorimetry (DSC) chip for liquid crystal phase transition characterization. This is the first DSC chip capable of measuring a liquid sample at a sub-nL volume capacity. The chip achieves a heat-flow resolution of 6.29 nW, the highest among state-of-the-art demonstrations [1]. The chip features suspended twin membranes that house self-enclosed silicon nitride microchannels. The design realizes a low system heat capacitance of 2.3 mu J/K and thus minimizes the deformation in the DSC thermogram and the shift of transition temperature at an increased temperature scanning rate. Those distortions of the DSC measurement result have typically been observed at increased scanning rates for commercial DSC and other DSC chips. The compact chip comprises solid materials to facilitate measurement under low vacuum and offer superior sensitivity and low noise.

Klíčová slova

Differential Scanning Calorimetry; Liquid Crystal; 4-Cyano-4 '-pentylbiphenyl; Enthalpy

Autoři

NI, S.; BU, Y.; ZHU, H.; VASHCHENKO, V.V.; SRIVASTAVA, A.K.; NEUŽIL, P.; YOBAS, L.

Vydáno

9. 1. 2022

ISBN

978-1-6654-0911-7

Kniha

Proceedings IEEE Micro Electro Mechanical Systems

Strany od

134

Strany do

137

Strany počet

4

BibTex

@inproceedings{BUT182250,
  author="NI, S. and BU, Y. and ZHU, H. and VASHCHENKO, V.V. and SRIVASTAVA, A.K. and NEUŽIL, P. and YOBAS, L.",
  title="A SUB-nL DIFFERENTIAL SCANNING CALORIMETRY CHIP FOR LIQUID CRYSTAL PHASE TRANSITION CHARACTERIZATION",
  booktitle="Proceedings IEEE Micro Electro Mechanical Systems",
  year="2022",
  pages="134--137",
  isbn="978-1-6654-0911-7"
}