Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore.
Adv Mater. 2016 Apr;28(16):3138-44. doi: 10.1002/adma.201506367. Epub 2016 Feb 29.
Hexagonal Bi2 Te3 nanoplates support visible-range surface plasmons, of which the resonance energy is tuned as wide as 400 nm by Se doping and the resonance intensity is modulated by utilizing the phase change between the crystalline and amorphous states. The potential of Bi2 Te3 for reconfigurable plasmonics, plasmon-enhanced solar cells, and photoluminescence is demonstrated.
六方相 Bi2 Te3 纳米板支持可见光波段的表面等离激元，通过硒掺杂可将其共振能量调谐至 400nm 宽，且通过利用结晶相与非晶相之间的相变可调制共振强度。展示了 Bi2 Te3 在可重构等离子体学、等离子体增强太阳能电池和光致发光方面的应用潜力。
