Control of droplet morphology for inkjet-printed TIPS-pentacene transistors
Microelectronic Engineering
By: Myung Won Lee, Gi Seong Ryu, Young Uk Lee, Christopher Pearson, Michael C. Petty, and Chung Kun Song
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Abstract
We report on methods to control the morphology of droplets of 6,13-bis(triisopropyl-silylethynyl) pentacene (TIPS-PEN), which are then used in the fabrication of organic thin film transistors (OTFTs). The grain size and distribution of the TIPS-PEN were found to depend on the temperature of the droplets during drying. The performance of the OTFTs could be improved by heating the substrate and also by changing the relative positions of the inkjet-printed droplets. In our experiments, the optimum substrate temperature was 46 °C in air. Transistors with the TIPS-PEN grain boundaries parallel to the current flow between the source and drain electrodes exhibited charge carrier mobilities of 0.44 ± 0.08 cm2/V s.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Control of droplet morphology for inkjet-printed TIPS-pentacene transistors |
| Series title | Microelectronic Engineering |
| DOI | 10.1016/j.mee.2012.01.006 |
| Volume | 95 |
| Year Published | 2012 |
| Language | English |
| Publisher | Elsevier Science |
| Publisher location | Amsterdam |
| Description | 5 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Microelectronic Engineering |
| First page | 1 |
| Last page | 4 |
| Google Analytic Metrics | Metrics page |