Home
Resources
Publications
Enhanced Efficiency of All-Inorganic Perovskite Light-Emitting Diodes by Using F4-TCNQ-doped PTAA as a Hole-Transport Layer

Enhanced Efficiency of All-Inorganic Perovskite Light-Emitting Diodes by Using F4-TCNQ-doped PTAA as a Hole-Transport Layer

Yu-Shan Liu, Shuang Guo, Jing Feng, Yue-Feng Liu, Yan-Gang Bi, Da Yin, Xu-Lin Zhang, Hong-Bo Sun

Opt Lett. 2019 Oct 1;44(19):4817-4820.

PMID: 31568450

Abstract:

We demonstrate an enhanced efficiency of all-inorganic perovskite light-emitting diodes (PeLEDs) by doping an electron acceptor of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4-TCNQ) as a p-type dopant into the hole-transport layer (HTL) of poly-triarylamine (PTAA). The conductivity of the PTAA was improved by the formation of the CT complex through the electron transfer from the PTAA to F4TCNQ. Moreover, the hydrophobic surface of the PTAA leads to an improved surface morphology of the perovskite films compared to that on the conventionally used HTL of PEDOT:PSS. As a result, the maximum luminance and efficiency for the doped PTAA-based PeLEDs are 28020 cd/m2 and 13.5 cd/A, respectively, corresponding to 32.7% and 48% improvement in the efficiency compared to those of the pure PTAA or PEDOT:PSS-based PeLEDs.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS77268	PTAA			Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: