We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Supramolecular Chalcogen‐Bonded Semiconducting Nanoribbons at Work in Lighting Devices.
- Authors
Romito, Deborah; Fresta, Elisa; Cavinato, Luca M.; Kählig, Hanspeter; Amenitsch, Heinz; Caputo, Laura; Chen, Yusheng; Samorì, Paolo; Charlier, Jean‐Christophe; Costa, Rubén D.; Bonifazi, Davide
- Abstract
This work describes the design and synthesis of a π‐conjugated telluro[3,2‐β][1]‐tellurophene‐based synthon that, embodying pyridyl and haloaryl chalcogen‐bonding acceptors, self‐assembles into nanoribbons through chalcogen bonds. The ribbons π‐stack in a multi‐layered architecture both in single crystals and thin films. Theoretical studies of the electronic states of chalcogen‐bonded material showed the presence of a local charge density between Te and N atoms. OTFT‐based charge transport measurements showed hole‐transport properties for this material. Its integration as a p‐type semiconductor in multi‐layered CuI‐based light‐emitting electrochemical cells (LECs) led to a 10‐fold increase in stability (38 h vs. 3 h) compared to single‐layered devices. Finally, using the reference tellurotellurophene congener bearing a C−H group instead of the pyridyl N atom, a herringbone solid‐state assembly is formed without charge transport features, resulting in LECs with poor stabilities (<1 h).
- Subjects
NANORIBBONS; CHALCOGENS; ELECTRIC batteries; P-type semiconductors; THIN films; CHARGE measurement
- Publication
Angewandte Chemie, 2022, Vol 134, Issue 38, p1
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.202202137