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Image Sensor Arrays with Organic Photoconductors

Published online by Cambridge University Press:  21 March 2011

R. A. Street ,
J. Graham ,
Z. Popovic ,
A. Hor ,
M. Mulato ,
R. Lau  and
J. Ho
R. A. Street
Affiliation:
Xerox PARC, 3333 Coyote Hill Road, Palo Alto, CA 94304
J. Graham
Affiliation:
Xerox Research Center of Canada, Mississauga, Ontario, Canada
Z. Popovic
Affiliation:
Xerox Research Center of Canada, Mississauga, Ontario, Canada
A. Hor
Affiliation:
Xerox Research Center of Canada, Mississauga, Ontario, Canada
M. Mulato
Affiliation:
Xerox PARC, 3333 Coyote Hill Road, Palo Alto, CA 94304
R. Lau
Affiliation:
Xerox PARC, 3333 Coyote Hill Road, Palo Alto, CA 94304
J. Ho
Affiliation:
Xerox PARC, 3333 Coyote Hill Road, Palo Alto, CA 94304
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Abstract

Two-dimensional image sensor arrays incorporating an organic light sensor are reported, with potential application to digital cameras and x-ray imaging. The 512×512 element array has pixel size of 100 micron, and operates with active matrix addressing using amorphous silicon thin film transistors. The array design allows the use of a continuous layer of the organic sensor material without the need for pixel-level patterning. The sensor is a bilayer comprising a thin generator layer and a thicker hole transport layer. Generator materials benzimidazole perylene (BZP) and hydroxy gallium phthalocyanine (HOGaPc) have been studied, with a tetraphenyldiamine (TPD) transport layer. Both sensors give excellent imaging properties with low leakage current, good charge collection and high spatial resolution.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 665: Symposium C – Electronic, Optical and Optoelectronic Polymers and Oligomers , 2001 , C7.7
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

[1] Wang, J., Yu, G., Srdanov, G., and Heeger, A.J., Organic Electronics. 1, 33 (2000).Google Scholar
[2] Street, R.A., “Large Area Image Sensor Arrays”, in Technology and Applications of Amorphous Silicon, Editor Street, R.A., Springer Series in Materials Science 37, Springer-Verlag, Berlin, chapter 4, p.147 (2000).Google Scholar
[3] Mulato, M., Lemmi, F., Lau, R., Lu, J-P., Ho, J., Ready, S. E., Rahn, J. T., and Street, R. A., Physics of Medical Imaging, Proc. SPIE, 3977, 26 (2000).Google Scholar
[4] Pai, D. M., Yanus, J.F. and Stolka, M., J. Phys. Chem. 88, 4714 (1984).Google Scholar
[5] Hor, A. and Popovic, Z. D., “Photoconductivity Studies of Hydroxygallium Phthalocyanine”, Proc. IS&T 10th Int'l Congress. on Adv. in Non-impact Printing Technologies, p. 236 (1994).Google Scholar
[6] Popovic, Z. D., Hor, A-M. and Loutfy, R. O., Chemical Physics, 127, 451, 1988.Google Scholar
[7] Hecht, K., Z. Phys, 77, 235, (1932).Google Scholar
[8] Mulato, M., Ready, S., Schuylenbergh, K. Van, Lu, J. P. and Street, R. A., J. Appl. Phys, in press.Google Scholar