Photo-induced and resist-free imprint patterning of fullerene materials for use in functional electronics
2009 (English)In: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 131, no 11, 4006-4011 p.Article in journal (Refereed) Published
We report a novel and potentially generic method for the efficient patterning of films of organic semiconductors and demonstrate the merit of the method on the high-solubility fullerene [6,6]-phenyl C61- butyric acid methyl ester (PCBM). The patterning technique is notably straightforward as it requires no photoresist material and encompasses only two steps: (i) exposure of select film areas to visible laser light during which the PCBM mononer is photochemically converted into a dimeric state, and (ii) development via solvent washing after which the nonexposed portions of the PCBM film are selectively removed. Importantly, the method is highly benign in that it leaves the electronic properties of the remaining patterned material intact, which is directly evidenced by the fact that we fabricate fully functional arrays of micrometersized field-effect transistors with patterned PCBM as the active material.
Place, publisher, year, edition, pages
Washington, DC, USA: American Chemical Society , 2009. Vol. 131, no 11, 4006-4011 p.
Thin-film transistors, field-effect transistors, plastic solar-cells, C-60 films, soft lithography, MDMO-PPV, devices, spectroscopy, absorption, deposition
Atom and Molecular Physics and Optics
Research subject Physics
IdentifiersURN: urn:nbn:se:umu:diva-22134DOI: 10.1021/ja807964xOAI: oai:DiVA.org:umu-22134DiVA: diva2:212834