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Two terminal large area single and double p-i-n devices for image and color recognition

Published online by Cambridge University Press:  21 March 2011

P. Louro
Affiliation:
Electronics Telecommunications and Computer Dept., ISEL, Lisbon, Portugal. CFM, Complexo I, IST, Lisbon, Portugal
M. Vieira
Affiliation:
Electronics Telecommunications and Computer Dept., ISEL, Lisbon, Portugal. CFM, Complexo I, IST, Lisbon, Portugal
A. Fantoni
Affiliation:
Electronics Telecommunications and Computer Dept., ISEL, Lisbon, Portugal. CFM, Complexo I, IST, Lisbon, Portugal
M. Fernandes
Affiliation:
Electronics Telecommunications and Computer Dept., ISEL, Lisbon, Portugal. CFM, Complexo I, IST, Lisbon, Portugal
C. Nunes de Carvalho
Affiliation:
Electronics Telecommunications and Computer Dept., ISEL, Lisbon, Portugal. CFM, Complexo I, IST, Lisbon, Portugal
G. Lavareda
Affiliation:
Electronics Telecommunications and Computer Dept., ISEL, Lisbon, Portugal. CFM, Complexo I, IST, Lisbon, Portugal
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Abstract

Large area hydrogenated amorphous silicon single and stacked p-i-n structures with low conductivity doped layers are proposed as monochrome and color image sensors. All have the same intrinsic layer and in the doped layers the resistivity and optical gap was controlled through the addition of methane to the doping gas. The current-voltage characteristics and the spectral sensitivity under different illumination conditions are analyzed. The sensor output characteristics are evaluated under different read-out voltages and scanner wavelengths. To extract information on image range, intensity and color, a modulated light beam scans the sensor active area at three appropriate bias voltages and the photoresponse in each scanning position (“sub-pixel”) is recorded. The investigation of the sensor output under different scanner wavelengths and varying electrical bias reveals that the response can be tuned, thus enabling color separation. The operation of the sensor is exemplified and supported by a numerical simulation.

Type
Research Article
Copyright
Copyright © Materials Research Society 2004

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References

[1] Horton, J. W., Mazza, R. V., and Dym, H., Proc. IEEE, 52 (1964) 15131519.CrossRefGoogle Scholar
[2] Amelio, G. F., Scientifc American, 230 (1974) 2231.Google Scholar
[3] Neidlinger, T., Bruggemann, R., Brummak, H., Schubert, M. B., Journal of Non-Crystalline Solids 227–230 (1998) 13351339.CrossRefGoogle Scholar
[4] Caputo, D., Cesare, G. Journal of Non-Crystalline Solids 198–200 (1996).Google Scholar
[5] Stiebig, H. and Böhm, M., Journal of Non-Crystalline Solids. 164–166 (1993) 785.CrossRefGoogle Scholar
[6] Knipp, D., Stiebig, H., Fölsch, J., Carius, R. and Wagner, H., Mat. Res. Soc. Symp. Proc. 467 (1997) 931.CrossRefGoogle Scholar
[7] Vieira, M., Fernandes, M., Martins, J., Louro, P., Maçarico, A., Schwarz, R., and Schubert, M., IEEE Sensors Journal 1, No. 2 (2001) 158167.CrossRefGoogle Scholar
[8] Fernandes, M., Louro, P., Martins, J., Maçarico, A., Schwarz, R., Vieira, M.. Sensors and Actuators A. 92 (2001) 6066.CrossRefGoogle Scholar
[9] Fantoni, A, Fernandes, M., Louro, P., Rodrigues, I. and Vieira, M., Sensors and Actuator A, (2004) in press.Google Scholar

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