Hostname: page-component-7bb8b95d7b-dvmhs Total loading time: 0 Render date: 2024-09-21T22:59:11.398Z Has data issue: false hasContentIssue false
  • English
  • Français

Stacked n-i-p-n-i-p Heterojunctions for Image Recognition

Published online by Cambridge University Press:  01 February 2011

M. Vieira ,
A. Fantoni ,
M. Fernandes ,
P. Louro  and
I. Rodrigues
M. Vieira
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, Rua Conselheiro Emídio Navarro, P 1949-014 Lisboa, Portugal Tel: +351 21 8317181, Fax: +351 21 8317114, E-mail:mv@isel.pt.
A. Fantoni
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, Rua Conselheiro Emídio Navarro, P 1949-014 Lisboa, Portugal Tel: +351 21 8317181, Fax: +351 21 8317114, E-mail:mv@isel.pt.
M. Fernandes
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, Rua Conselheiro Emídio Navarro, P 1949-014 Lisboa, Portugal Tel: +351 21 8317181, Fax: +351 21 8317114, E-mail:mv@isel.pt.
P. Louro
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, Rua Conselheiro Emídio Navarro, P 1949-014 Lisboa, Portugal Tel: +351 21 8317181, Fax: +351 21 8317114, E-mail:mv@isel.pt.
I. Rodrigues
Affiliation:
Electronics Telecommunication and Computer Dept. ISEL, Rua Conselheiro Emídio Navarro, P 1949-014 Lisboa, Portugal Tel: +351 21 8317181, Fax: +351 21 8317114, E-mail:mv@isel.pt.
Get access

Abstract

This work aims to clarify possible improvements and physical limits of the Color Laser Scanned Photodiode image sensor when used as high sensitive non-pixel image reader. A new design based on a stacked n-i-p-n-i-p heterojunction is proposed and compared with the old single n-i-p sensing structure. Results show that a B-W image is acquired with an improved resolution. The readout frequency is optimized showing that scans speeds up to 104 lines per second can be achieved without degradation in the resolution. A physical model is presented and supported by an electrical and a numerical simulation of the output characteristics of the sensor.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 762: Symposium A – Amorphous and Nanocrystalline Silicon-Based Films – 2003 , 2003 , A18.13
Copyright
Copyright © Materials Research Society 2003

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1] Neidlinger, T., Bruggemann, R., Brummak, H., Schubert, M. B. Journal of Non-Crystalline Solids 227-230 (1998) 1335–1339.Google Scholar
[2] Caputo, D., Cesare, G. Journal of Non-Crystalline Solids 198-200 (1996) 1334–1336.Google Scholar
[3] Vieira, M., Fernandes, M., Martins, J., Louro, P., Maçarico, A., Schwarz, R., and Schubert, M., Mat. Res. Soc. Symp. Proc., Vol. 609 (2000) A14.Google Scholar
[4] Vieira, M., Fernandes, M., Martins, J., Louro, P., A. Maçarico, Schwarz, R., and Schubert, M., IEEE Sensors Journal 1, No. 2 (2001)158–167.Google Scholar
[5] Fernandes, M., Louro, P., Martins, J., Maçarico, A., Schwarz, R., Vieira, M.. Sensors and Actuators A. 92 (2001) pp.60–66.Google Scholar
[6] Louro, P., Vieira, M., Vygranenko, Yu., Fernandes, M., Schwarz, R., Schubert, M., Applied Surface Science, 184 (2001) 144–149.Google Scholar
[7] Vieira, M., Fernandes, M., Fantoni, A., Louro, P., Vygranenko, Y., Schwarz, R., Schubert, M.. Applied Surface Science, 184 (2001) pp. 471–476.Google Scholar
[8] Martins, R., Fantoni, A., and Vieira, M., J. of Non-Cryst. Solids 164&166 (1993) 671.Google Scholar
[9] Fantoni, A, Fernandes, M., Louro, P., Schwarz, R. and Vieira, M., In Amorphous and Heterogeneous Silicon Thin Films-2001, Mat. Res. Soc. Symp. Proc., (S. Francisco, USA), Vol. 664 (2001) A25.11.Google Scholar
[10] Fantoni, A, Fernandes, M., Louro, P., Schwarz, R. and Vieira, M., In Amorphous and Heterogeneous Silicon Thin Films- 2001, Mat. Res. Soc. Symp. Proc., Vol. 664 (2001) A25.11.Google Scholar