open access

https://hdl.handle.net/2115/97898

Enabling Wholly Aromatic Triphenylamine-Based Polyimides to Realize Bathochromic Emission

英語

wholly aromatic polyimide

2025-07-11

Wiley-Blackwell

Advanced optical materials

13(20)

2500570

The development of wholly aromatic polyimides (Ar-PIs) in the field of fluorescence material has long been hindered by the charge-transfer complex (CTC) effect, typically causing weak or non-detectable fluorescence intensity. Few studies have aimed to reduce the CTC effect through molecular design, enabling Ar-PIs to exhibit blue to yellow emission in solid films with high quantum efficiency (Phi PL). However, current complex molecular designs pose inherent limitations for further reducing the emission energy gap toward the orange-red regions. To address this issue, in this work, a series of triphenylamine (TPA)-based fluorescence diimides with various electron-donating/extended pi-conjugation pendant groups are strategically designed and synthesized to probe their emissive behaviors and the corresponding Ar-PIs properties. Notably, along a series of new Ar-PIs, PI-TPE, PI-TPPA-TPE, and PI-TPPA exhibit a systematic bathochromic shift emission at 540, 598, and 608 nm, respectively, in the film state, where PI-TPPA and PI-TPPA-TPE fill up and realize the full-spectrum emission by utilizing the TPA architecture.

学術雑誌論文

Accepted Manuscript

This is the peer reviewed version of the following article: M.-C. Hou, Y.-J. Shao, C.-H. Lin, P.-Y. Lin, W. Sun, Y.-Y. Tsai, P.-T. Chou, T. Gao, T. Satoh, G.-S. Liou, Enabling Wholly Aromatic Triphenylamine-Based Polyimides to Realize Bathochromic Emission. Adv. Optical Mater. 2025, 13, 2500570, which has been published in final form at https://doi.org/10.1002/adom.202500570. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

2195-1071