Silver Zeolite Composite-Based LEDs: Origin of Electroluminescence and Charge Transport | Zendy

Koen Kennes | Zendy; Cristina Martín | Zendy; Wouter Baekelant | Zendy; Eduardo CoutiñoGonzález | Zendy; Eduard Fron | Zendy; Maarten B. J. Roeffaers | Zendy; Johan Hofkens | Zendy; Mark Van der Auweraer | Zendy

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Silver Zeolite Composite-Based LEDs: Origin of Electroluminescence and Charge Transport

Author(s) -

Koen Kennes,

Cristina Martín,

Wouter Baekelant,

Eduardo CoutiñoGonzález,

Eduard Fron,

Maarten B. J. Roeffaers,

Johan Hofkens,

Mark Van der Auweraer

Publication year - 2019

Publication title -

acs applied materials and interfaces

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.535

H-Index - 228

eISSN - 1944-8252

pISSN - 1944-8244

DOI - 10.1021/acsami.8b20534

Subject(s) - materials science , light emitting diode , electroluminescence , phosphor , anode , optoelectronics , diode , polystyrene , composite number , voltage , zeolite , metal , nanotechnology , electrode , layer (electronics) , composite material , polymer , electrical engineering , metallurgy , biochemistry , chemistry , catalysis , engineering

In this contribution, we report on the first time use of silver-exchanged zeolites embedded in the nonconductive polystyrene (PS) and their use as hybrid emitters in light-emitting diodes (ZEOLEDs). The turn on voltage and EL intensity are strongly dependent on the concentration of metal clusters. It is shown that the key to optimize this technology is improving the zeolite anode contact. Such an optimized device based on cheap abundant materials could provide an alternative for the commercial phosphor converted LEDs. A ZEOLED with a voltage polarity dependent color is demonstrated.

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