One more step to fast and efficient short-wavelength infrared photodetection

被引:1
|
作者
Li, Yanxun [1 ]
Zhou, Huiqiong [1 ]
机构
[1] Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, CAS Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China
关键词
D O I
10.1016/j.matt.2021.03.018
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Ligand exchanges play a crucial role in development of high-quality colloidal quantum dot (CQD) solids for fast and sensitive short-wavelength infrared photodetection. Sargent et al. report a two-step ligand exchange route to tailor efficient passivation, remove unwanted organics, and enhance charge transport, leading to a CQD photodetector with an EQE > 80% at 1550 nm, a measured detectivity of 8 x 10(11) Jones, and a 10-ns response time.
引用
收藏
页码:1097 / 1099
页数:3
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