Solution-Processed Hybrid Light-Emitting Devices Comprising TiO2 Nanorods and WO3 Layers as Carrier-Transporting Layers

Tsung Yan Tsai; Po Ruei Yan; Sheng-Hsiung Yang

doi:10.1186/s11671-016-1733-x

Solution-Processed Hybrid Light-Emitting Devices Comprising TiO₂ Nanorods and WO₃ Layers as Carrier-Transporting Layers

Tsung Yan Tsai, Po Ruei Yan, Sheng-Hsiung Yang^*

^*Corresponding author for this work

Institute of Lighting and Energy Photonics

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

The goal of this research is to prepare inverted light-emitting devices with improved performance by combining titanium dioxide (TiO₂) nanorods and tungsten trioxide (WO₃) layer. TiO₂ nanorods with different lengths were established directly on the fluorine-doped tin oxide (FTO) substrates by the hydrothermal method. The prepared TiO₂ nanorods with lengths shorter than 200 nm possess transmittance higher than 80% in the visible range. Inverted light-emitting devices with the configuration of FTO/TiO₂ nanorods/ionic PF/MEH-PPV/PEDOT:PSS/WO₃/Au were constructed. The best device based on 100-nm-height TiO₂ nanorods achieved a max brightness of 4493 cd/m² and current efficiency of 0.66 cd/A, revealing much higher performance compared with those using TiO₂ compact layer or nanorods with longer lengths as electron-transporting layers.

Original language	English
Article number	516
Journal	Nanoscale Research Letters
Volume	11
Issue number	1
DOIs	https://doi.org/10.1186/s11671-016-1733-x
State	Published - 1 Dec 2016

Keywords

Electron-transporting layers
Inverted light-emitting devices
Titanium dioxide nanorods
Tungsten trioxide

Access to Document

10.1186/s11671-016-1733-x

Cite this

@article{cce2debbb2294a6c8b65cb67d8faca7b,

title = "Solution-Processed Hybrid Light-Emitting Devices Comprising TiO2 Nanorods and WO3 Layers as Carrier-Transporting Layers",

abstract = "The goal of this research is to prepare inverted light-emitting devices with improved performance by combining titanium dioxide (TiO2) nanorods and tungsten trioxide (WO3) layer. TiO2 nanorods with different lengths were established directly on the fluorine-doped tin oxide (FTO) substrates by the hydrothermal method. The prepared TiO2 nanorods with lengths shorter than 200 nm possess transmittance higher than 80% in the visible range. Inverted light-emitting devices with the configuration of FTO/TiO2 nanorods/ionic PF/MEH-PPV/PEDOT:PSS/WO3/Au were constructed. The best device based on 100-nm-height TiO2 nanorods achieved a max brightness of 4493 cd/m2 and current efficiency of 0.66 cd/A, revealing much higher performance compared with those using TiO2 compact layer or nanorods with longer lengths as electron-transporting layers.",

keywords = "Electron-transporting layers, Inverted light-emitting devices, Titanium dioxide nanorods, Tungsten trioxide",

author = "Tsai, {Tsung Yan} and Yan, {Po Ruei} and Sheng-Hsiung Yang",

note = "Publisher Copyright: {\textcopyright} 2016, The Author(s).",

year = "2016",

month = dec,

day = "1",

doi = "10.1186/s11671-016-1733-x",

language = "English",

volume = "11",

journal = "Nanoscale Research Letters",

issn = "1931-7573",

publisher = "Springer New York",

number = "1",

}

TY - JOUR

T1 - Solution-Processed Hybrid Light-Emitting Devices Comprising TiO2 Nanorods and WO3 Layers as Carrier-Transporting Layers

AU - Tsai, Tsung Yan

AU - Yan, Po Ruei

AU - Yang, Sheng-Hsiung

PY - 2016/12/1

Y1 - 2016/12/1

N2 - The goal of this research is to prepare inverted light-emitting devices with improved performance by combining titanium dioxide (TiO2) nanorods and tungsten trioxide (WO3) layer. TiO2 nanorods with different lengths were established directly on the fluorine-doped tin oxide (FTO) substrates by the hydrothermal method. The prepared TiO2 nanorods with lengths shorter than 200 nm possess transmittance higher than 80% in the visible range. Inverted light-emitting devices with the configuration of FTO/TiO2 nanorods/ionic PF/MEH-PPV/PEDOT:PSS/WO3/Au were constructed. The best device based on 100-nm-height TiO2 nanorods achieved a max brightness of 4493 cd/m2 and current efficiency of 0.66 cd/A, revealing much higher performance compared with those using TiO2 compact layer or nanorods with longer lengths as electron-transporting layers.

AB - The goal of this research is to prepare inverted light-emitting devices with improved performance by combining titanium dioxide (TiO2) nanorods and tungsten trioxide (WO3) layer. TiO2 nanorods with different lengths were established directly on the fluorine-doped tin oxide (FTO) substrates by the hydrothermal method. The prepared TiO2 nanorods with lengths shorter than 200 nm possess transmittance higher than 80% in the visible range. Inverted light-emitting devices with the configuration of FTO/TiO2 nanorods/ionic PF/MEH-PPV/PEDOT:PSS/WO3/Au were constructed. The best device based on 100-nm-height TiO2 nanorods achieved a max brightness of 4493 cd/m2 and current efficiency of 0.66 cd/A, revealing much higher performance compared with those using TiO2 compact layer or nanorods with longer lengths as electron-transporting layers.

KW - Electron-transporting layers

KW - Inverted light-emitting devices

KW - Titanium dioxide nanorods

KW - Tungsten trioxide

UR - http://www.scopus.com/inward/record.url?scp=84996563923&partnerID=8YFLogxK

U2 - 10.1186/s11671-016-1733-x

DO - 10.1186/s11671-016-1733-x

M3 - Article

AN - SCOPUS:84996563923

SN - 1931-7573

VL - 11

JO - Nanoscale Research Letters

JF - Nanoscale Research Letters

IS - 1

M1 - 516

ER -

Solution-Processed Hybrid Light-Emitting Devices Comprising TiO₂ Nanorods and WO₃ Layers as Carrier-Transporting Layers

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this