Hardening and Optimizing of the Black Gold Thin Film as the Absorption Layer for Infrared Detector

Dong-pei Qian; Chuan-gui Wu; Yao Shuai; Wen-bo Luo; Qiang-xiang Peng; Xiao-yong Chen; Wan-li Zhang

doi:10.4236/opj.2013.32B066

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Optics and Photonics Journal > Vol.3 No.2B, June 2013

Hardening and Optimizing of the Black Gold Thin Film as the Absorption Layer for Infrared Detector ()

Dong-pei Qian, Chuan-gui Wu, Yao Shuai, Wen-bo Luo, Qiang-xiang Peng, Xiao-yong Chen, Wan-li Zhang

State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, China.

DOI: 10.4236/opj.2013.32B066 PDF HTML 4,730 Downloads 6,217 Views Citations

Abstract

This paper reports on the study of the black gold thin film as the absorption layer in the near infrared spectrum. The fabrication of the black gold thin film was achieved by a thermal evaporation technique in N₂ atmosphere. Different evaporation conditions were attempted to optimize the absorbance of the black gold coating, especially the atmosphere pressure and the mass of evaporation source. The long-standing problem of black gold’s adhesion with the substrate was solved by fuming 502 superglues into the black gold layer, which had almost no impact on the absorbance performance. Layers produced at N₂ atmosphere of 3×10³ Pa show an absorbance exceeding0.9 inthe near infrared.

Keywords

Black Gold; 502 Fuming; Absorption Layer

Share and Cite:

D. Qian, C. Wu, Y. Shuai, W. Luo, Q. Peng, X. Chen and W. Zhang, "Hardening and Optimizing of the Black Gold Thin Film as the Absorption Layer for Infrared Detector," Optics and Photonics Journal, Vol. 3 No. 2B, 2013, pp. 281-283. doi: 10.4236/opj.2013.32B066.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	T. W. Lang, K. Kühl and H. Sandmaier, “Absorbing Layers for Thermal Infrared Detectors,” Sensors And Actuators A:Physical, Vol. 34, No. 3, 1992, pp. 243-248. doi:10.1016/0924-4247(92)85007-O
[2]	W. Becker, et al., “Black Gold Deposits As Absorbers for Far Infrared Radiation,” Physica status solidi(b), Vol. 194, No. 1, 1996, pp. 241-255. doi:10.1002/pssb.2221940123
[3]	P. Fiorentin, “Response of Printing Coloured Ink to Light Exposure Measurement and Analysis,” I2MTC, 2011, pp. 10-12.
[4]	J. W. Cleary, R. E. Peale, M. Ishigami, et al., “Effects of Polymer Infusion and Characteristic Length Scale on Gold-Black Long-Wave and Far-infrared Absorbance,” Materials Science and Engineering, Vol. 5, 2011, pp. 171-176.