Quantum-dot-doped polymer nanofibers for optical sensing.

Meng, Chao; Xiao, Yao; Wang, Pan; Zhang, Lei; Liu, Yanxin; Tong, Limin · Adv Mater · 2011

basic_science · Level V

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Abstract

High-quality quantum-dot/polystyrene nanofibers (QD/PS NFs) are synthesized by drawing solvated PS doped with CdSe/ZnS QDs. As-drawn QD/PS NFs offer ultra-long-term photostability, flexibility, and excellent optical properties for sensing applications. Based on these active NFs, optical humidity sensors with extremely low power consumption, fast response, and long-term stability are successfully demonstrated, which may lead to a new category of nanometer-scale optical sensors.