Poly(p-phenylenevinylene)의 전기냉광 및 산소 존재하에서의 광열화

정태형; 김장주

Polymer(Korea), Vol.20, No.4, 716-721, July, 1996

Export Citation

Poly(p-phenylenevinylene)의 전기냉광 및 산소 존재하에서의 광열화

Electroluminecence and Photoinduced Degradation of Poly(p-phenylenevinylene) by Laser Light under Oxygen Environment

정태형, 김장주

초록

Poly(f-phenylenevinylene) 고분자의 전기냉광과 전기냉광시의 스펙트럼 상에서 피이크에 해당하는 파장의 빛을 레이저로 poly(p-phenylenevinylene) 고분자에 조사하였을 때 광열화가 일어나는 것을 관찰하였다. 광냉광의 특성이 공기 중에서는 급격히 열화하며 진공하에서는 일어나지 않았다. 이것은 공기 중의 산소가 광열화를 촉진하는 것을 나타내며, 이 가설은 자외선-가시광 흡수 분광과 자외선 분광법으로 확인하였다.

We report the observations of electroluminescence and photodegradation of poly (p-phenylenevinylene) polymer when the polymer film was irradiated with laser light at a wavelength corresponding to the peak wavelength of electroluminescence. Degradation in photoluminescent properties was significant in an air environment but not under vacuum. This indicates that the oxygen in air aids photodegradation and this hypothesis was confirmed by UV-VIS absorption and infrared spectroscopy.

Keywords:electroluminescence;conducting polymer;photodegradation;poly(p-phenylene vinylene)

[References]

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[1] Burrough JH, Bradley DDC, Brown AR, Marks RN, MacKay K, Friend RH, Burn PL, Holmes AB, Nature, 347, 539 (1990)

[2] Braun D, Heeger AJ, Appl. Phys. Lett., 58, 1982 (1991)

[3] Zyung T, Hwang DH, Shim HK, Kim JJ, Hwang WY, Synth. Met., 71, 2167 (1995)

[4] Holmes AB, Bradley DDC, Brown AR, Burn PL. Burrough JH, Friend RH, Greenham NC, Gymer RW, Halliday DA, Jackson RW, Kraft A, Martens JHF, Pichler K, Samuel IDW, Synth. Met., 55-57, 4031 (1993)

[5] Pakbaz K, Lee CH, Heeger AJ, Habler TW, McBranch D, Synth. Met., 64, 295 (1994)

[6] Parker ID, J. Appl. Phys., 75, 1656 (1994)

[7] Murase I, Ohnishi T, Noguchi T, Hirooka M, Polym. Commun., 26, 362 (1985)

[8] Bradley DDC, Friend RH, Lindenberger H, Roth S, Pratt FL, Wong KS, Hayes W, Springer Series Solid State Sci., 76, 113 (1987)

[9] Papadimitrakopoulos F, Konstadinidis K, Miller TM, Opila R, Chandross EA, Galvin ME, Chem. Mater., 6, 1563 (1994)

[10] Murase I, Ohnishi T, Noguchi T, Hirooka M, Polym. Commun., 25, 327 (1985)

[11] Bradley DDC, Friend RH, Feast WJ, Synth. Met., 17, 645 (1987)

[12] Bradley DDC, Friend RH, J. Phys. : Condens. Matter., 1, 3671 (1989)

[13] Yoshino K, Kuwabara T, Iwasa T, Kawai T, Onoda M, Jpn. J. Appl. Phys., 29, L1514 (1990)

[14] Bradley DDC, J. Phys. D: Appl. Phys., 20, 1389 (1987)

[15] Silverstein RM, Clayton GC, Morrill TC, "Spectroscopic Identification of Organic Compound," New York, John Wiley & Sons, Inc. (1974)