News & Events

Conjugated Organic Materials for Printed Electronic Applications

Date: 
Tuesday, March 3, 2026 - 12:45 to 14:00
Speaker: 
Dr. Gregory Welch
Affiliation: 
Department of Chemistry, University of Calgary
Event Category: 
LMC - Lectures in Modern Chemistry
Host: 
Dr. Zac Hudson
Location: 
Chemistry B250

Social event to take place from 12:30pm-12:45pm in the breezeway.

Abstract:

Polycyclic heteroerotic molecules are widely used as printable electroactive materials for use in a range of electronic devices.1 Our team at the University of Calgary has been actively developing modified dyes and pigments for use in a range of solution processed electronic devices including organic solar cells,2 organic light emitting diodes,3 organic transistors,4 organic photo/electro cathodes,5 organic electrochromics,6 and organic sensors.7 This presentation will detail the design and synthesis of several classes of (a) aromatic molecules based off the classic perylene diimide (PDI) dye scaffold and (b) quinoidal molecules based of the new para-azaquinodimethane (AQM) building block. All for use in large area printed devices and modules. Structure-property relationships, the formation of functional large area films via slot-die coating, and utility in several applications relevant to energy, health, and the environment will be covered. Emphasis will be placed on solar energy conversion and gas/temperature sensors.

  1. Chem. Rev. 2022, 122, 565−788
  2. Chemistry of Materials, 2023, 35, 1, 251-260
  3. Journal of Materials Chemistry C, 2020, 9, 2314-2319
  4. Journal of Materials Chemistry C, 2021, 9, 13630-13634
  5. Chemical Science, 2022, 13, 1049-1059
  6. Journal of Materials Chemistry C, 2024, 12, 1710-1717
  7. RSC Sensors and Diagnostics, 2024, 3, 817-821