期刊
APPLIED PHYSICS LETTERS
卷 104, 期 11, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4869216
关键词
-
资金
- ERC [ERC-306983]
- Austrian granting agency FWF [SFB IR_ON F25]
- Austrian Science Fund (FWF) [F 2505] Funding Source: researchfish
Understanding and improving charge transport in colloidal quantum dot solids is crucial for the development of efficient solar cells based on these materials. In this paper, we report high performance field-effect transistors based on lead-sulfide colloidal quantum dots (PbS CQDs) crosslinked with 3-mercaptopropionic acid (MPA). Electron mobility up to 0.03 cm(2)/Vs and on/off ratio above 10(5) was measured; the later value is the highest in the literature for CQD Field effect transistors with silicon-oxide gating. This was achieved by using high quality material and preventing trap generation during fabrication and measurement. We show that air exposure has a reversible p-type doping effect on the devices, and that intrinsically MPA is an n-type dopant for PbS CQDs. (C) 2014 AIP Publishing LLC.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据