Synthesis and application of photosensitive pentacene precursor in organic thin film transistors
US7053401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2002 |
| Grant date | May 30, 2006 |
| Priority date | — |
| Expiry date | Jul 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/221
Abstract
Soluble, photosensitive precursors of pentacene are synthesized by a one-step Diels-Alder reaction of pentacene with N-sulfinylamides. These precursors may include a photopolymerizable group, which renders the pentacene precursor as a negative tone resist. The pentacene precursor may also include an acid-sensitive protecting group, which in the presence of a photoacid generator and upon exposure to UV light, is removed and the product becomes base soluble. Patterned pentacene thin films may be obtained by exposure to UV light through a mask and/or heating, and used as an active channel material for an organic field effect transistor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.