Enabling Tailorable Optical Properties and Markedly Enhanced Stability of Perovskite Quantum Dots by Permanently Ligating with Polymer Hairs

Young Jun Yoon, Yajing Chang, Shuguang Zhang, Meng Zhang, Shuang Pan, Yanjie He, Chun Hao Lin, Shengtao Yu, Yihuang Chen, Zewei Wang, Yong Ding, Jaehan Jung, Naresh Thadhani, Vladimir V. Tsukruk, Zhitao Kang, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

116 Scopus citations

Abstract

Instability of perovskite quantum dots (QDs) toward humidity remains one of the major obstacles for their long-term use in optoelectronic devices. Herein, a general amphiphilic star-like block copolymer nanoreactor strategy for in situ crafting a set of hairy perovskite QDs with precisely tunable size and exceptionally high water and colloidal stabilities is presented. The selective partition of precursors within the compartment occupied by inner hydrophilic blocks of star-like diblock copolymers imparts in situ formation of robust hairy perovskite QDs permanently ligated by outer hydrophobic blocks via coprecipitation in nonpolar solvent. These size- and composition-tunable perovskite QDs reveal impressive water and colloidal stabilities as the surface of QDs is intimately and permanently ligated by a layer of outer hydrophobic polymer hairs. More intriguingly, the readily alterable length of outer hydrophobic polymers renders the remarkable control over the stability enhancement of hairy perovskite QDs.

Original languageEnglish
Article number1901602
JournalAdvanced Materials
Volume31
Issue number32
DOIs
StatePublished - 2019

Bibliographical note

Funding Information:
This work was financially supported by the Air Force Office of Scientific Research (AFOSR) (MURI FA9550-14-1-0037, FA9550-16-1-0187, and FA9550-19-1-0317), Defense Threat Reduction Agency (DTRA) (HDTRA1-18-1-0004), Department of Energy–Small Business Technology Transfer (DOE-STTR; DE-SC0018611), Department of Energy (DOE) (DE-FG02-09ER46604), and National Science Foundation (NSF) (CMMI 1727313 and 1914713, and CBET 1727313).

Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Keywords

  • block copolymers
  • nanoreactors
  • perovskite
  • quantum dots
  • stability

Fingerprint

Dive into the research topics of 'Enabling Tailorable Optical Properties and Markedly Enhanced Stability of Perovskite Quantum Dots by Permanently Ligating with Polymer Hairs'. Together they form a unique fingerprint.

Cite this