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Title: High mobility solution-processed hybrid light emitting transistors

We report the design, fabrication, and characterization of high-performance, solution-processed hybrid (inorganic-organic) light emitting transistors (HLETs). The devices employ a high-mobility, solution-processed cadmium sulfide layer as the switching and transport layer, with a conjugated polymer Super Yellow as an emissive material in non-planar source/drain transistor geometry. We demonstrate HLETs with electron mobilities of up to 19.5 cm{sup 2}/V s, current on/off ratios of >10{sup 7}, and external quantum efficiency of 10{sup −2}% at 2100 cd/m{sup 2}. These combined optical and electrical performance exceed those reported to date for HLETs. Furthermore, we provide full analysis of charge injection, charge transport, and recombination mechanism of the HLETs. The high brightness coupled with a high on/off ratio and low-cost solution processing makes this type of hybrid device attractive from a manufacturing perspective.
Authors:
;  [1] ; ; ;  [2] ;  [3] ;  [4] ;  [5] ;  [3]
  1. School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 689-798 (Korea, Republic of)
  2. Centre for Organic Photonics and Electronics, University of Queensland, Brisbane, Queensland 4072 (Australia)
  3. Department of Materials Physics, Dong-A University, Busan 604-714 (Korea, Republic of)
  4. (Korea, Republic of)
  5. Department of Physics and EHSRC, University of Ulsan, Ulsan 680-749 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22391914
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 18; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CADMIUM SULFIDES; CHARGE TRANSPORT; ELECTRON MOBILITY; LAYERS; MATHEMATICAL SOLUTIONS; POLYMERS; QUANTUM EFFICIENCY; TRANSISTORS