İzopropanol katkılı Poli (3,4-etilen dioksitiyofen): poli (stirensülfonat) 'ın organik ışık yayan diyotların emisyon özellikleri üzerindeki etkisi

Abstract

Pozitif yük taşıyıcılar (boşluk) enjekte eden tabaka olarak kullanılan izopropanol (IPA) katkılı Poli (3,4-etilen dioksitiyofen): poli (stirensülfonat) (PEDOT: PSS) içeren polimer bazlı organik ışık yayan cihazların (OLED) performans araştırılmıştır. Bu çalışmada, PEDOT:PSS ince filmlerindeki morfolojik değişiklikler atomik kuvvet mikroskopisi (AFM) ile analiz edilmiştir. Katkılı PEDOT:PSS ile OLED aygıt performansı sonuçları katkısız PEDOT:PSS OLED aygıtı ile karşılaştırılmıştır. Konsantrasyon 1: 1 (PEDOT: PSS - IPA) ile üretilen OLED aygıt, neredeyse 8000 cd / m2 parlaklık ve 1.75 cd / A verimliliği ile diğerleri arasında en iyi performansı göstermiştir. Ek olarak, literatürde önerilen IPA doping mekanizmalarının etkisi araştırılmıştır.

Keywords

• Organik ışık yayan diyotlar
• PEDOT: PSS
• boşluk iletim tabakası
• IPA

Effect of isopropanol doped Poly(3,4-ethylene dioxythiophene): poly(styrenesulfonate) on emission characteristics of organic light emitting diodes

Abstract

The performance of polymer based organic light-emitting devices (OLEDs) that contained isopropanol (IPA) doped poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) utilized as positive charge carriers (hole) injecting electrode were investigated. In this study, morphological changes in PEDOT:PSS thin films have been analyzed with atomic force microscopy (AFM). The results of device performance with doped PEDOT:PSS were compared with the result of non doped PEDOT:PSS device. Fabricated OLED with the concentration 1:1 (PEDOT:PSS to IPA) shows the best performance among the others with almost 8000 cd/m2 brightness and 1.75 cd/A efficiency. Additionally, effect of IPA doping mechanisms proposed in the literature have been surveyed.

Keywords

• Organic light emitting diodes
• PEDOT:PSS
• hole injection layer
• IPA

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