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Most Intriguing Documents 3Q08-Chemistry and Related Science

Following is one of the journal documents most requested by researchers using CAS online services.

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CAS indexed 13 chemical substances from this document. CAS subject entries for this document include: Electroluminescent devices; Photoresists; Solvents.

CAPLUS COPYRIGHT 2008 ACS on STN

TITLE:	Dry photolithographic patterning process for organic electronic devices using supercritical carbon dioxide as a solvent
AUTHOR(S):	Hwang, Ha Soo; Zakhidov, Alexander A.; Lee, Jin-Kyun; Andre, Xavier; DeFranco, John A.; Fong, Hon Hang; Holmes, Andrew B.; Malliaras, George G.; Ober, Christopher K.
CORPORATE SOURCE:	Department of Materials Science and Engineering, Cornell University, Ithaca, NY, 14853, USA
SOURCE:	Journal of Materials Chemistry (2008), 18(26), 3087-3090 CODEN: JMACEP; ISSN: 0959-9428
PUBLISHER:	Royal Society of Chemistry
LANGUAGE:	English

ABSTRACT:
The particular challenge of micropatterning org. materials has stimulated numerous approaches for making effective and repeatable patterned structures with fine features. Among all the micropatterning techniques photolithog., being the preferred method for the inorg. semiconductor industry, did not create much impact due to its incompatibility with the majority of org. electronic materials. Here the authors introduce a novel, chem. benign approach to dry photolithog. patterning of org. materials using super-crit. CO2 (scCO2) as a green developing solvent. The authors illustrate the possible applications of the new technique by patterning conducting polymers and light emitting polymers for org. light emitting diodes. PEDOT:PSS.