PbS胶体量子点稳定性研究进展

Research Progress on Stability of PbS Colloidal Quantum Dots

PbS胶体量子点由于其制备简单、成本低廉,在近红外波段通过调节尺寸就能改变带隙,在太阳能电池、红外探测、LED、生物成像等多个领域均有广泛的应用,但稳定性限制了其大规模推广。本文总结了影响PbS胶体量子点稳定性的机理,从制备、结构、保存、使用等多个环节探讨提高其稳定性的具体措施。提出进一步改进PbS胶体量子点稳定性的具体方法和原理,对其应用和发展具有一定的参考价值。

Due to the simple preparation,low cost,and adjustable bandgap via changing their sizes in the near-infrared band,PbS colloidal quantum dots(QDs)have been widely used in many fields such as solar cell,infrared detection,LED,and biological imaging.However,instability limits further practical application.In this study,the instability mechanism of PbS colloidal QDs was investigated,and measures to improve their stability are discussed in terms of preparation,structure,preservation,and application.Measures and mechanisms for further improving stability are proposed,which have great value for their application and development.