Solution Processable Se-annulated Swallow Tail Perylene Bisimide Exhibiting Room Temperature Columnar Phase and Efficient Ambipolar Charge Carrier Mobility

This study presents a selenium-annulated perylene bisimide (PBI-SeST) stabilizing room temperature columnar hexagonal phase with exceptionally low clearing temperature. The synthesis of this Se-annulated PBI (PBI-SeST) was accomplished using the reductive Cadogan cyclization method, with the introdu...

Full description

Saved in:
Bibliographic Details
Published in:Chemistry : a European journal 2024-12, p.e202402557
Main Authors: Behera, Paresh Kumar, Yadav, Kajal, Roy, Mrinmoy, D S, Shankar Rao, Pandey, Upendra Kumar, Ammathnadu Sudhakar, Achalkumar
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study presents a selenium-annulated perylene bisimide (PBI-SeST) stabilizing room temperature columnar hexagonal phase with exceptionally low clearing temperature. The synthesis of this Se-annulated PBI (PBI-SeST) was accomplished using the reductive Cadogan cyclization method, with the introduction of swallow tails to reduce the clearing temperature and improve solubility. In addition, the charge carrier mobility of the Se-bay annulated PBI is assessed by space charge limited current (SCLC) technique and juxtaposed with PBI as well as nitrogen and sulphur-bay-annulated PBIs. It is noteworthy that all these PBIs exhibited ambipolar charge carrier mobility, a characteristic that diverges from the prevailing literature where predominantly electron transport behavior was observed for PBIs. This distinguishes them as an exclusive category of solution-processable, self-assembling organic semiconductors.
ISSN:1521-3765
1521-3765
DOI:10.1002/chem.202402557