Issue 5, 2022

Exploring the molecular electronic device applications of synthetically versatile silicon pincer complexes as charge transport and electroluminescent layers

Abstract

Hexacoordinate silicon pincer complexes using 2,6-bis(benzimidazol-2-yl)pyridine (bzimpy) ligands have been developed as a multifunctional, molecular electronic materials platform. We report the synthesis, characterization, and device application of a variety of Si(pincer)2 complexes that exhibit tunable optoelectronic properties and excellent thermal stabilities. Promising, ambipolar charge carrier properties and excimeric electroluminescence were obtained from thermally deposited films using several device architectures. Incorporation of the complexes as a thin, interfacial contact and electron transport layer improved organic solar cell efficiencies by as much as 50%. The versatility and tailorability of this class of silicon complexes provides promising evidence for their future application in molecular electronic devices.

Graphical abstract: Exploring the molecular electronic device applications of synthetically versatile silicon pincer complexes as charge transport and electroluminescent layers

Supplementary files

Article information

Article type
Paper
Submitted
17 Aug. 2021
Accepted
24 Dec. 2021
First published
28 Dec. 2021
This article is Open Access
Creative Commons BY-NC license

Mater. Adv., 2022,3, 2373-2379

Exploring the molecular electronic device applications of synthetically versatile silicon pincer complexes as charge transport and electroluminescent layers

M. Kocherga, K. M. Boyle, J. Merkert, T. A. Schmedake and M. G. Walter, Mater. Adv., 2022, 3, 2373 DOI: 10.1039/D1MA00737H

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