A polymer/semiconductor write-once read-many-times memory

Sven Möller, Craig Perlov, Warren Jackson, Carl Taussig and Stephen R. Forrest ()
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Sven Möller: Princeton University
Craig Perlov: Hewlett-Packard Laboratories
Warren Jackson: Hewlett-Packard Laboratories
Carl Taussig: Hewlett-Packard Laboratories
Stephen R. Forrest: Princeton University

Nature, 2003, vol. 426, issue 6963, 166-169

Abstract: Abstract Organic devices promise to revolutionize the extent of, and access to, electronics by providing extremely inexpensive, lightweight and capable ubiquitous components that are printed onto plastic, glass or metal foils1,2,3. One key component of an electronic circuit that has thus far received surprisingly little attention is an organic electronic memory. Here we report an architecture for a write-once read-many-times (WORM) memory, based on the hybrid integration of an electrochromic polymer with a thin-film silicon diode deposited onto a flexible metal foil substrate. WORM memories are desirable for ultralow-cost permanent storage of digital images, eliminating the need for slow, bulky and expensive mechanical drives used in conventional magnetic and optical memories. Our results indicate that the hybrid organic/inorganic memory device is a reliable means for achieving rapid, large-scale archival data storage. The WORM memory pixel exploits a mechanism of current-controlled, thermally activated un-doping of a two-component electrochromic conducting polymer.

Date: 2003
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DOI: 10.1038/nature02070

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