SZU-NUS Collaborative Center and International Collaborative Laboratory of 2D Materials for Optoelectronic Science & Technology of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China.
Chem Soc Rev. 2018 Aug 28;47(17):6473-6485. doi: 10.1039/c8cs00124c.
The precise control over the luminescence profile of lanthanide-doped upconversion nanomaterials is of fundamental importance for their applications in wide-ranging fields of research. Conventional chemical approaches can lead to color-tunable emissions, but they generally require stringent modification either on dopant composition or doping concentration. In this Tutorial Review, we highlight a number of complementary methods that offer remote dynamic modulation of upconversion luminescence across the visible spectrum. This review serves to provide a summary of existing guidelines for controlling the emission spectrum of upconversion nanocrystals with fixed materials composition. The review will also discuss the major approaches to manipulating excitation energies and consider likely research challenges for further development of the field at the interface between nanotechnology and biological science.
精确控制镧系掺杂上转换纳米材料的发光谱对于它们在广泛的研究领域中的应用至关重要。传统的化学方法可以实现可调色彩的发射，但通常需要对掺杂剂成分或掺杂浓度进行严格的修改。在本综述中，我们强调了几种互补的方法，它们可以在整个可见光谱范围内对上转换发光进行远程动态调制。本综述旨在提供现有控制上转换纳米晶体固定材料组成发射光谱的指南摘要。还将讨论操纵激发能的主要方法，并考虑纳米技术和生物科学界面上该领域进一步发展的可能研究挑战。
