Work

Direct detection of molecular hydrogen upon p- and n-doping of organic semiconductors with complex oxidants or reductants

Year: 2023

Type: article

Abstract: Molecular doping enables increasing the conductivity of organic semiconductors and plays an increasingly important role in emerging and established plastic electronics applications. 1,3-Dimethyl-2-(4-(dimethylamino)phenyl)-2,4-dihydro-1H-benzoimidazole (N-DMBI-H) and tris(pentafluorophenyl)borane (BCF) are established n- and p-dopants, respectively, but neither functions as a simple one-electron redox agent. Molecular hydrogen has been proposed to be a byproduct of several mechanisms for doping using both DMBI-H and BCF. In this paper we show for the first time the direct detection of molecular hydrogen in the uncatalyzed doping of a variety of polymeric and molecular semiconductors using these dopants. Our results provide insight in the doping mechanism, providing information complementary to that obtained from more commonly applied methods such as optical, electron spin resonance, and electrical measurements.

Source: Journal of Materials Chemistry A

DOI: 10.1039/d3ta00231d

Authors: Francesca Pallini, Sara Mattiello, Norberto Manfredi, Sara Mecca, Alexey Fedorov, Mauro Sassi, Khaled Al Kurdi, Yi-Fan Ding, Chen-Kai Pan, Jian Pei, Stephen Barlow, Seth R. Marder, Thuc-Quyen Nguyen, Luca Beverina

Institutions: University of Milano-Bicocca, National Research Council, Georgia Institute of Technology, Peking University, Beijing National Laboratory for Molecular Sciences, University of Colorado Boulder, University of Colorado System, University of California, Santa Barbara

Language: English

Topic: Organic Electronics and Photovoltaics

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: National Science Foundation, U.S. Department of Energy, Dipartimenti di Eccellenza, Ministero dell'Università e della Ricerca, Division of Materials Research

Awards: Collaborative Research: Development of Dimeric Molecular n- and p-Dopants and their Application in Organic Light-emitting Diodes, G1992064436, G282640767, G5395170919, DMREF: Metallic-type transport in polymers: Establishing materials design criteria and predicting structure/property interrelations, G7249523115, UNDERSTANDING NOVEL LEWIS ACID DOPING MECHANISMS IN ORGANIC SEMICONDUCTORS, Collaborative Research: Development of Dimeric Molecular n- and p-Dopants and their Application in Organic Light-emitting Diodes, G8260414889, G8318468404

OpenAlex ID: W4323645409

FWCI: 1.297

Cites: 39

Cited by: 18

Related to: 10