Loading...
Please wait, while we are loading the content...
Similar Documents
Polyferrocenylsilane Semicrystalline Polymer Additive for Solution-Processed p-Channel Organic Thin Film Transistors
| Content Provider | MDPI |
|---|---|
| Author | He, Zhengran Zhang, Ziyang Asare-Yeboah, Kyeiwaa Bi, Sheng Chen, Jihua Li, Dawen |
| Copyright Year | 2021 |
| Description | In this study, we demonstrated for the first time that a metal-containing semicrystalline polymer was used as an additive to mediate the thin film morphology of solution-grown, small-molecule organic semiconductors. By mixing polyferrocenylsilane (PFS) with an extensively-studied organic semiconductor 6,13-bis(triisopropylsilylethynyl) pentacene (TIPS pentacene), PFS as a semicrystalline polymer independently forms nucleation and crystallization while simultaneously ameliorating diffusivity of the blend system and tuning the surface energies as a result of its partially amorphous property. We discovered that the resultant blend film exhibited a 6-fold reduction in crystal misorientation angle and a 3-fold enlargement in average grain width. Enhanced crystal orientation considerably reduces mobility variation, while minimized defects and trap centers located at grain boundaries lessen the adverse impact on the charge transport. Consequently, bottom-gate, top-contact organic thin film transistors (OTFTs) based on the TIPS pentacene/PFS mixture yielded a 40% increase in performance consistency (represented by the ratio of average mobility to the standard deviation of mobility). The PFS semicrystalline polymer-controlled crystallization can be used to regulate the thin film morphology of other high-performance organic semiconductors and shed light on applications in organic electronic devices. |
| Starting Page | 402 |
| e-ISSN | 20734360 |
| DOI | 10.3390/polym13030402 |
| Journal | Polymers |
| Issue Number | 3 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-01-27 |
| Access Restriction | Open |
| Subject Keyword | Polymers Polymer Science Small-molecule Semiconductor Polyferrocenylsilane Thin Film Morphology Organic Thin Film Transistors Organic Electronics |
| Content Type | Text |
| Resource Type | Article |
