Development of pressure sensitive molecular film as a measurement technique for micro-flows

Y. Matsuda*, H. Mori, Y. Sakazakf, T. Uchida, S. Suzuki, H. Yamaguchi, T. Niimi

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


The pressure-sensitive paint (PSP) has potential as a diagnostic tool for pressure measurement in the high Knudsen number regime because it works as a so-called "molecular sensor". However, there are few reports concerning application of the PSP to micro devices, because the conventional PSP is too thick owing to the use of polymer binder. In our previous work, we have adopted Langmuir-Blodgett (LB) technique to fabricate pressure sensitive molecular films (PSMFs) using Pd(II) Mesoporphyrin IX (PdMP). The PSMF based on PdMP has pressure sensitivity only at low pressure range (below 3kPa). In this study, we have constructed PSMF composed of Pt(II) Mesoporphyrin IX (PtMP) to be applied to pressure measurement near atmospheric pressure. The pressure sensitivity of PSMF based on PtMP has been tested, and it is clarified that the PSMF of PtMP has equivalent pressure sensitivity of polymer PSP. Moreover, we have applied PSMF to measurement of pressure distribution of micro-channel gas flow, showing its usefulness.

Original languageEnglish
Pages (from-to)527-532
Number of pages6
JournalAIP Conference Proceedings
Publication statusPublished - 2009 Apr 13
Externally publishedYes
Event26th International Symposium on Rarefied Gas Dynamics, RGD26 - Kyoto, Japan
Duration: 2008 Jul 202008 Jul 25


  • Langmuir-Blodgett film
  • Micro gas Flow
  • Pressure-sensitive paint

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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