Effects of Substrate Temperature on Vacuum Deposited Thin Film of Disperse Red 1 on ITO Glass

H. Taunaumang, Herman Herman, M. O. Tjia

Abstract


Abstract. Highly crystalline thin films of photorefractive Disperse Red 1 (DR 1) molecule have been fabricated on clean substrate of ITO (indium tin oxide) glass by means of physical vapor deposition at various substrate temperatures. In addition to molecular orientation and organization revealed by their XRD and FTIR spectral characteristic and the enhancement of those effects by substrate temperature, further analysis of FTIR spectrum around nitrobenzene absorption band indicates the formation of strong hydrogen bond resulting in a head-tail stacking of the molecules. The deposited films also show systematic reduction of light absorption in the visible region with increasing substrate temperature. This modification of the optical property is clearly favorable for long wavelength photonic applications of DR1 film.

 

Pengaruh Suhu Substrat pada Film Tipis ‘Disperse Red 1’ yang Dideposisi pada Gelas ITO dalam Vakum

Sari. Dalam eksperimen ini telah berhasil diperoleh melalui proses deposisi vakum sejumlah film tipis bahan fotorefraktif dari molekul “Disperse Red 1” (DR1) dengan krisalinitas tinggi di atas substrat gelas ITO (“indium tin oxide”) pada berbagai suhu. Selain efek orientasi dan organisasi molekul yang ditunjukkan oleh karakteristik spectra XRD dan FTIR bersangkutan serta peningkatan efek tersebut dengan suhu substrat, analisis lebih lanjut dari data FTIR di sekitar pita absorpsi nitrobenzene telah mengungkapkan tanda embentukan ikatan hydrogen yang kuat yang menghasilkan susunan “head-tail” yang bertumpuk. Film yang terdeposisi juga memperkihatkan pengurangan absorpsi cahaya secara sistematik di daerah tampak, seiring dengan peningkatan suhu substrat. Perubahan sifat optik ini jelas bermanfaat bagi aplikasi film DR1 untuk devais fotonik dalam daerah gelombang panjang.


Keywords


physical vapor deposition; substrate temperature; thin film; disperse red 1; optical properties; deposisi vakum; “disperse red 1”; film tipis; sifat optik suhu substrat

Full Text:

PDF

References


Prasad, PN, Orezyk, ME, & Zieba, J, Polymeric Composite Materials for Nonlinear Optics and Photonic, Nonlinear Optics, 14, pp 127-134, 1995.

Kaino, T, Yakoo, A, Asabe, M. Tomaru, S, & Kurihara, T, Organic Nonlinear Optical Materials for Device Applications, Nonlienar Optics, 14, pp. 135-150, 1995.

Mohlmann, GR, Development of Optically Nonlinear Polymers and Devices, Synthetic Metals, 37, 207-221, 1990.

Hu, S, Carlisle, GO, & Martinez, DR, Absorption Studies of polymer dye film oriented by corona poling, Journal of Materials Science Letter, 11, 994-796, 1992.

Sotyama, W, Tatsuura, S, Motoyoshi, K, & Yoshimura, T, Directional-Coupled Optical Switch Between Stacked Waveguide Layers Using Electro-Optic Polymer, Jpn. J. Appl. Phys., 31, 1180-1181, 1992.

Shishido, A, Tsutsumi, O, Kanazawa, A, Shiono, T, Ikeda, T, & Tamai, N, Rapid Optical Switching by Means of Photoinduced Change in Refractive Index of Photoinduced Change in Refractive Index of Axobenzene Liquid Crystals Detectes by Reflection-Mode Analysis, J. A,. Chem. Soc., 119, 7791-7796, 1997.

Meng, X, Natanshon, A, Barrett, C, & Rochon, P, Azo Polymers for Reversible Optical Storage. 10. Cooperative Motion of Polar Side Groups in Amorphous Polymers, Macromolecules., 29, 946-952, 1996.

Okamoto, N, Unoh, H, Sugihara, O, & Matsushima, R, Large Second-Harmonie Generation in Composite Film of p-Nitroanilin and Its Derivatives, Nonlinear Optics., 14, 245-250, 1995.

Ehara, T, Hirose, H, Kobayashi, H, Kotani, M, Molecular alignment in organic thin films, Synthetic Metals, 109, 43-46, 2000.

Taunaumang, H, Herman, Tjia, MO, Preparation of Disperse Red 1 Thin Film by Vacuum Evaporation Method, Prosiding Simposium Fisika Nasional XVIII, Serpong, 465-472, 2000.

Taunaumang, H, Herman, Tjia, MO, Molecular Orientation in Disperse Red 1 Thin Film Produced by PVD Method, subsmitted to Optical Material.

Singer, KD, Sohn, JE, & Lalama, SJ. Second harmonic generation in poled polymer films, Appl. Phys. Lett., 49,(5),1986.

Nuyken, O, Scherer, C, Baindl, A, Brenner, AR, Dahn, U, Gartner, R, Kaiser, S, Matusche, P, & Voit, B, Axo-Group-Containing Polymers for Use in Communication Technologies, Prog. Polym. Sci., 22, 93-183, 1997.

Colthup, NB, Daly, LH, Wiberly, SE, Introduction to Infrared and Rantan Spectroscopy, Academic Press, London, 1975.

Soyoyama, W, Tatsuura, S, & Yoshira, T, Electrooptic Side-Chain Polyimide System with Large Optical Nonlinearity and High Thermal Stability, Appl. Phy. Lett., 64, (17), 1994.

Astrand, P-O, Ramanujam, PS, Hvilsted, S, Bak, KL, & Sauer, SPA, Ab Initio Calculation of the Electronic Spectrum of Azobenze Dyes and Its Impact on the Design of Optical Data Storage Materials. J. Am. Chem.Soc., 122, 3482-3487, 2000.


Refbacks

  • There are currently no refbacks.


View my Stats

Creative Commons License
This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.

 

ITB Journal Publisher, LPPM ITB, Center for Research and Community Services (CRCS) Building, 6th & 7th Floor, Jalan Ganesha 10, Bandung 40132, Indonesia, Phone: +62-22-86010080, Fax.: +62-22-86010051; E-mail: jmfs@lppm.itb.ac.id