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Abstract

Abstract: DESCRIPTION (provided by applicant): This SBIR Phase I project addresses the need for low-temperature, large-area deposition routes to CdZnTe electronic materials for use in flat panel x-ray image detectors. According to the research plan, a novel ink composition will be formulated to allow growth of CdZnTe materials at temperatures less than 300 xC.The process will utilize a hybrid ink containing CdZnTe nanoparticles mixed with a reactive dispersant in a non-aqueous solvent. The reactive dispersant, a metal-organic molecule, will strongly coordinate to CdZnTe nanoparticles to form a suspension at ambient temperatures. During spray deposition, this reactive dispersant will thermally transform into CdZnTe and byproducts at relatively low-temperature. If high-quality CdZnTe materials can be deposited in such a fashion according to a low-temperature (i.e., <300 xC) process, the approach is directly amenable to application on amorphous silicon (a-Si) thin film transistor (TFT) arrays. Coupling a CdZnTe photoconductor with an a-Si TFT would result in the formation of a flat panel x-ray image detector. Such detectors could enable real-time interactive x-ray imaging.

Thesaurus Terms:
biomedical equipment development, cadmium, nanotechnology, radiography, surface coating, tellurium, zinc
organic chemical, photoconduction, silicon
bioimaging /biomedical imaging

Institution:	CERAMEM CORPORATION
	12 CLEMATIS AVE
	WALTHAM, MA 02453
Fiscal Year:	2002
Department:
Project Start:	01-SEP-2002
Project End:	31-AUG-2003
ICD:	NATIONAL INSTITUTE OF BIOMEDICAL IMAGING AND BIOENGINEERING
IRG:	ZRG1