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Updated: Sep 27, 2025
A Modular Microfluidic Technology for Systematic Studies of Colloidal Semiconductor Nanocrystals
Published on: May 10, 2018
Fibrous Nanoreactors from Microfluidic Blow Spinning for Mass Production of Highly Stable Ligand-Free Perovskite
Rui Cheng1, Zhi-Bin Liang1, Liangliang Zhu1
1State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, and Jiangsu Key Laboratory of Fine Chemicals and Functional Polymer Materials, Nanjing Tech University, Nanjing, 210009, China.
Abstract:
Nano-/micro-reactors have emerged as a powerful platform for chemical synthesis. Here, we develop fiber-spinning chemistry (FSC) based on a microfluidic blow spinning (MBS) technique, allowing the availability of nanoreactors for chemical synthesis with scale-up capacities. Proof-of-concept experiments focus on the utilization of MBS-derived fibrous nanoreactors for large-scale production of ligand-free perovskite quantum dots (PQDs) in one step. Typically, methylammonium lead halide (MAPbX3 , X=Cl, Br, and I) PQDs in situ synthesized at large scale inside polyacrylonitrile (PAN) nanofiber films (size 120 cm ×30 cm per hour), exhibit high photoluminescence (PL) quantum yield (QY) of 71 %, tunable emissive peaks (448-600 nm), and superb PL stability. The PQDs/polymer nanofiber films are potentially useful for CO2 conversion, wide-color-gamut displays and light-emitting diode (LED) devices. These findings may guide the development of nano-/micro-reactor technology for scale-up production of nanomaterials with various potential applications.
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