DataVXACS Applied Materials & InterfacesPaper
journal article·2019-09-25

Giant Stability Enhancement of CsPbX3 Nanocrystal Films by Plasma-Induced Ligand Polymerization

Li Wang, Yiyuan Zhu, Hu Liu, Jinhui Gong, Wei Wang, Siyu Guo, Yao Yu, Haiyan Peng, Yonggui Liao

ACS Applied Materials & Interfaces· Volume 11· Issue 38
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Source abstract

Abstract

All-inorganic CsPbX3 (X = Cl, Br, and I) nanocrystals (NCs) are emerging as attractive semiconductor materials because of their outstanding optical properties. The low resistance of CsPbX3 NCs to light, heat, oxygen, and water has been recognized as a major obstacle to their practical applications. Here, we demonstrate that the stability of CsPbX3 NC films can be dramatically enhanced by Ar plasma treatment. It is revealed that plasma irradiation can induce ligand polymerization in the NC films if the ligands contain unsaturated carbon bonds. The ligand polymerization leads to encapsulation of the NCs in the ligand polymers. Because of the precise localization of the in situ ligand polymerization under plasma irradiation and the high NC content in the films without extra additives, the polymerized area can be precisely defined down to several micrometers. This enables easy fabrication of high-resolution NC pixels for next generation displays.
Source: openalex_inverted_index · Quality: baseline

Research context

PolymersNanomaterialsElectronic materials

OpenAlex topics: Perovskite Materials and Applications · Quantum Dots Synthesis And Properties · Optical properties and cooling technologies in crystalline materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering, Nanchang University, Nanchang 330031, P.R. China

State Key Lab for Materials Processing and Die & Mould Technology, Wuhan National High Magnetic Field Center, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, P.R. China

Funding

Ministry of Science and Technology of the People's Republic of China · National Natural Science Foundation of China · Natural Science Foundation of Jiangxi Province

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