NiOx Electrode Interlayer and CH3 NH2 /CH3 NH3 PbBr3 Interface Treatment to Markedly Advance Hybrid Perovskite-Based Light-Emitting Diodes

Yi-Kai Chih; Jian-Chih Wang; Rei-Ting Yang; Chi-Ching Liu; Yun-Chorng Chang; Yaw-Shyan Fu; Wei-Chi Lai; Peter Chen; Ten-Chin Wen; Yu-Ching Huang; Cheng-Si Tsao; Tzung-Fang Guo

doi:10.1002/adma.201602974

NiO_x Electrode Interlayer and CH₃ NH₂ /CH₃ NH₃ PbBr₃ Interface Treatment to Markedly Advance Hybrid Perovskite-Based Light-Emitting Diodes

Adv Mater. 2016 Oct;28(39):8687-8694. doi: 10.1002/adma.201602974. Epub 2016 Aug 12.

Authors

Yi-Kai Chih¹, Jian-Chih Wang¹, Rei-Ting Yang¹, Chi-Ching Liu², Yun-Chorng Chang², Yaw-Shyan Fu³, Wei-Chi Lai^{1

4}, Peter Chen¹, Ten-Chin Wen⁵, Yu-Ching Huang⁶, Cheng-Si Tsao⁶, Tzung-Fang Guo^{7

8}

Affiliations

¹ Department of Photonics, National Cheng Kung University, Tainan, Taiwan, 701, ROC.
² Research Center for Applied Science, Academia Sinica, Taipei, Taiwan 115.
³ Department of Greenergy Technology, National University of Tainan, Tainan, Taiwan 701.
⁴ Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan 701.
⁵ Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan 701.
⁶ Institute of Nuclear Energy Research, Atomic Energy Council, Taoyuan, Taiwan 325.
⁷ Department of Photonics, National Cheng Kung University, Tainan, Taiwan, 701, ROC. [email protected].
⁸ Advanced Optoelectronic Technology Center, National Cheng Kung University, Tainan, Taiwan 701. [email protected].

PMID: 27515370
DOI: 10.1002/adma.201602974

Abstract

The performance of hybrid perovskite-based light-emitting diodes (LEDs) is markedly enhanced by the application of a NiO_x electrode interlayer and moderate methylamine treatment. A hybrid perovskite-based LED exhibits a peak luminous efficiency of 15.9 cd A^-1 biased at 8.5 V, 407.65 mA cm^-2 , and 65 300 cd m^-2 , showing a distinctive impact for future applications.

Keywords: CH3NH3PbBr3; hybrid light-emitting diodes; methylamine; nickel oxide; perovskites.