上海光机所在量子点单模激光研究中取得新进展

最新评论

天蓝色3230 2020-09-24 22:51

关注科研动态。

tassy 2020-09-25 00:14

关注自然科学动态。

likaihit 2020-09-25 00:28

自然科学动态。

redplum 2020-09-25 00:32

挺有意义啊

chengzheng 2020-09-25 04:24

激光雷达，学习 i

yangcong 2020-09-25 05:33

学习了

bairuizheng 2020-09-25 05:57

′好光源可做实验

tomryo 2020-09-25 06:59

上海光机所在量子点单模激光研究中取得新进展

mang2004 2020-09-25 07:17

Broad-band lead halide perovskite quantum dot single-mode lasers PiYxk+N  
Abstract O7IJ%_A&  
Perovskite colloidal quantum dots (CQDs) enable a solution-processed approach toward lasers, simultaneously providing tunable wavelength, high quantum efficiency, large absorption cross-section, and long Auger lifetimes. However, broad-band single-mode lasers based on such CQDs have been proven to be challenging. Here we report broad-band single-mode lasers from solution-processed CsPbX3 (X = Cl, Br, I) CQDs based on a high-quality zinc oxide microrod hexagonal whispering-gallery microcavity. A typical single-mode laser with ultra-narrow linewidth (∼0.21 nm, quality factor ∼3000) at 11.7 μJ cm−2 was obtained at 636 nm based on the conformal deposition of CsPb(Br0.5I0.5)3 CQDs on an individual hexagonal zinc oxide microrod cavity with a radius of about ∼776 nm. Moreover, by tuning the halogen ratio, synthesis temperature and the size of the zinc oxide microrods, broad-band tunable single-mode lasers are obtained across the entire visible spectrum from 417 nm to 723 nm. These results represent a significant step towards easy solution-processed broad-band tunable single-mode lasers. )>- =R5ZV  

1074865503 2020-09-25 08:14

虽然不太懂，但感觉很牛