Two-In-One Method for Graphene Transfer: Simplified Fabrication Process for Organic Light-Emitting Diodes
Artikel i vetenskaplig tidskrift, 2018

Graphene as one of the most promising transparent electrode materials has been successfully applied in organic light-emitting diodes (OLEDs). However, traditional poly(methyl methacrylate) (PMMA) transfer method usually results in hardly removed polymeric residues on the graphene surface, which induces unwanted leakage current, poor diode behavior, and even device failure. In this work, we proposed a facile and efficient two-in-one method to obtain clean graphene and fabricate OLEDs, in which the poly(9,9-di-n-octylfluorene-alt-(1,4-phenylene-(4-sec-butylphenyl)imino)-1,4-phenylene) (TFB) layer was inserted between the graphene and PMMA film both as a protector during the graphene transfer and a hole-injection layer in OLEDs. Finally, green OLED devices were successfully fabricated on the PMMA-free graphene/TFB film, and the device luminous efficiency was increased from 64.8 to 74.5 cd/A by using the two-in-one method. Therefore, the proposed two-in-one graphene transfer method realizes a high-efficient graphene transfer and device fabrication process, which is also compatible with the roll-to-roll manufacturing. It is expected that this work can enlighten the design and fabrication of the graphene-based optoelectronic devices.

graphene

OLEDs

hole-injection layer

PMMA

F4TCNQ

transfer method

Författare

Lihui Liu

Nanjing University of Posts and Telecommunications

Wenjuan Shang

Nanjing University of Posts and Telecommunications

Chao Han

Nanjing University of Posts and Telecommunications

Qing Zhang

Nanjing University of Posts and Telecommunications

Yao Yao

Nanjing University of Posts and Telecommunications

Xiaoqian Ma

Nanjing University of Posts and Telecommunications

Minghao Wang

Nanjing University of Posts and Telecommunications

Hongtao Yu

Nanjing University of Posts and Telecommunications

Yu Duan

Jilin University

Jie Sun

Beijing University of Technology

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Shufen Chen

Nanjing University of Posts and Telecommunications

Wei Huang

Northwestern Polytechnical University

Nanjing University of Posts and Telecommunications

ACS Applied Materials & Interfaces

1944-8244 (ISSN) 1944-8252 (eISSN)

Vol. 10 8 7289-7295

Ämneskategorier

Textil-, gummi- och polymermaterial

Annan kemi

Den kondenserade materiens fysik

DOI

10.1021/acsami.7b19039