Control of population of excited nitrogen molecules by mixing hydrogen in low pressure discharge

Katsuyuki Uematsu; Motoshige Yumoto; Takao Sakai

doi:10.1541/ieejfms1990.118.6_635

Katsuyuki Uematsu, Motoshige Yumoto, Takao Sakai

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JOURNAL FREE ACCESS

1998 Volume 118 Issue 6 Pages 635-640

DOI https://doi.org/10.1541/ieejfms1990.118.6_635

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Published: June 01, 1998 Received: February 25, 1998 Available on J-STAGE: July 15, 2008 Accepted: - Advance online publication: - Revised: -
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Date of correction: July 15, 2008 Reason for correction: - Correction: DTRECEIVED Details: Wrong : 19971003
Right : 19980225

Date of correction: July 15, 2008 Reason for correction: - Correction: CITATION Details: Wrong : [4] M. Yumoto, Y. Kuroda and T. Sakai: "Electron energy distribution of glow-like discharge in nitrogen at very high E/n conditions", J. Phys. D: Appl. Phys., Vol. 24, pp. 1594-1600 (1991)
[10] Lawrence G. Piper, Lauren M. Cowles, and Wilson T. Rawlins: "State-to-state excitation of NO (A2Σ+,v'=0,1,2) by N2 (A3Σ+ u,v;=0,1,2)" J. Chem. Phys., Vol. 85, No. 6, pp. 3369. 3378 (1986)
[11] T. G. Slanger: "Reactions of Small Transient Species", Chap. 5, A. Fontijin & M.A.A.Clyne (eds.), Academic Press (1983), and references therin
[12] L. C. Lee and Masako Suto: "Production and quenching of excited photofragments of N2O" J. Chem. Phys., Vol. 80, No. 10, pp. 4718-4726 (1984)
[13] Grace H. Ho and Michael F. Golde: "Experimental study of the reactions of N2 (A3Σ+ u) with H atoms and OH radicals" J. Chem. Phys., Vol. 95, No. 12, pp. 8866-8870 (1991)

Right : [4] M. Yumoto, Y. Kuroda and T. Sakai: "Electron energy distribution of glow-like discharge in nitrogen at very high E/n conditions", J. Phys. D: Appl. Phys., Vol. 24, pp. 1594-1600 (1991)
[8] J. Brandrup. E. H. Immergut: "POLYNIER HANDBOOK", Secand edition, A WILEY-INTERSCENCE PUBLICATION (1975)
[10] Lawrence G. Piper, Lauren M. Cowles, and Wilson T. Rawlins: "State-to-state excitation of NO (A2Σ+,v'=0,1,2) by N2 (A3Σ+ u,v;=0,1,2)" J. Chem. Phys., Vol. 85, No. 6, pp. 3369. 3378 (1986)
[11] T. G. Slanger: "Reactions of Small Transient Species", Chap. 5, A. Fontijin & M.A.A.Clyne (eds.), Academic Press (1983), and references therin
[12] L. C. Lee and Masako Suto: "Production and quenching of excited photofragments of N2O" J. Chem. Phys., Vol. 80, No. 10, pp. 4718-4726 (1984)
[13] Grace H. Ho and Michael F. Golde: "Experimental study of the reactions of N2 (A3Σ+ u) with H atoms and OH radicals" J. Chem. Phys., Vol. 95, No. 12, pp. 8866-8870 (1991)

Date of correction: July 15, 2008 Reason for correction: - Correction: PDF FILE Details: -

Abstract

The authors have studied on surface treatment of PTFE by a low pressure discharge.It is deduced that excited nitrogen molecules contribute to introduce polar'components on the surface.To confirm the speculation, we tried to change population of metastable nitrogen N2(A3Σ+ u) by quenching precursor N2 (B3IIg) with hydrogen molecule.The decrease of relaxation time which indicates a change of excited molecule and measured by emission spectroscopy using a time after glow method was obtained.
As a result, the relaxation times of N2 (B3IIg) and N2 (A3Σ+ u) decreased to 55% and 20% respectively, when mixing ratio of hydrogen was 3%. It was also deduced that hydrogen atom may take a part in a quenching process of N2 (A3Σ+ u).

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