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This newly commercialized, organic semiconductor is solutions-processible

By Chemical Engineering |

The first commercially available, pentacene-based, organic semiconductor material is sufficiently soluble to render it amenable to solution-depositing methods, according to 3M (St. Paul, Minn.; http://www.3m.com). The company recently began marketing the product as semiconductor L-20856 (TIPS-pentacene) for low-cost transistors. Substitution of the five-ring system at specific locations (diagram) allows sufficient solubility in a range of hydrocarbon and halogenated solvents. With enhanced solubility, the material can be coated onto substrates using solution deposition methods, such as spin-coating, spray coating and ink-jet printing. The ability to utilize conventional solution-depositing methods in manufacturing electronic structures makes high-volume, low-cost production possible, explains Larry Ennett, 3M electronics-markets business-development manager. The manufacturing advantages make TIPS-pentacene attractive as a semiconductor material in applications where lower-cost transistors are desirable. These include displays for handheld electronic devices, sensors in radio-frequency identification (RFID) tags, instrumentation readouts and other display formats. Manufacturing TIPS-pentacene-based electronics does not require the high-capital-cost…
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