Recombination at heterojunctions in disordered organic media: Modeling and numerical simulations

Znanstveni rad - Izvorni znanstveni rad

• Autor: Ivan Jurić
• Autor: Ivo Batistić
• Autor: Eduard Tutiš
• Autorova ustanova: Sveučilište u Zagrebu; Prirodoslovno-matematički fakultet; (Fizički odsjek)
• Znanstveno / umjetničko područje, polje i grana: PRIRODNE ZNANOSTI; Fizika

Sažetak (engleski)

Multilayer organic electroluminescent devices derive their advantages over their single-layer counterparts from the processes occurring at heterojunctions in organic media. These processes significantly differ from those in the bulk of the material. This paper presents three-dimensional modeling, numerical simulations, and a discussion of transport and recombination in a system with a heterojunction. We consider partial cross sections for the creation of excitons and exciplexes, and probabilities for recombination in the respective channels. We examine the influence of the energy barrier, electric field, site-energy disorder, and structural disorder at an organic-organic interface on transport and recombination. In particular, we investigate optimal parameter domains for recombination in the exciton channel. The interface roughness, unlike the site-energy disorder, is found to strongly affect the partial cross sections.

• Ključne riječi (engleski): electroluminescent devices; electron-hole recombination; excitons; interface phenomena; interface roughness; organic light emitting diodes
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Physical review B: Condensed matter and materials physics
• Brojčani podaci: vol. 77, br. 16, 165304
• p-ISSN: 1098-0121
• e-ISSN: 1550-235X
• DOI: https://doi.org/10.1103/PhysRevB.77.165304
• URN:NBN: urn:nbn:hr:217:884669
• Datum objave publikacije: 2008
• Projekt: Šifra: 035-0352826-2847; Naziv (hrvatski): Modeliranje fizikalnih svojstava materijala s izraženom frustracijom ili neredom; Voditelj: Eduard Tutiš; Pravna nadležnost: Hrvatska; Financijer: MZOS; Linija financiranja: ZP
• Projekt: Šifra: 119-1191458-0512; Naziv (hrvatski): Niskodimenzionalni jako korelirani vodljivi sustavi; Voditelj: Slaven Barišić; Pravna nadležnost: Hrvatska; Financijer: MZOS; Linija financiranja: ZP
• URL dokumenta: http://link.aps.org/doi/10.1103/PhysRevB.77.165304
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Javna napomena: Copyright (2008) by the American Physical Society. Received 30 October 2007; revised manuscript received 25 January 2008; published 2 April 2008.
• Datum i vrijeme pohrane: 2019-10-18 21:24:28