24小时热门版块排行榜

返回列表

当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖

nofrunolif

铁杆木虫 (职业作家)

[资源] p型 N掺杂ZnO研究进展JACS文章*

P-Type Nitrogen-Doped ZnO Nanoparticles Stable under Ambient Conditions

Zinc oxide is considered as a very promising material for optoelectronics. However, to date, the difficulty in producing stable p-type ZnO is a bottleneck, which hinders the advent of ZnO-based devices. In that context, nitrogen-doped zinc oxide receives much attention. However, numerous reviews report the controversial character of p-type conductivity in N-doped ZnO, and recent theoretical contributions explain that N-doping alone cannot lead to p-typeness in Zn-rich ZnO. We report here that the ammonolysis at low temperature of ZnO2 yields pure wurtzite-type N-doped ZnO nanoparticles with an extraordinarily large amount of Zn vacancies (up to 20%). Electrochemical and transient spectroscopy studies demonstrate that these Zn-poor nanoparticles exhibit a p-type conductivity that is stable over more than 2 years under ambient conditions.

*************************************************************
另附一个论坛内考古帖子，科学总是在不断的争论中得到发展，感兴趣的可以看下。

感谢dawnlight 版主，未告知的情况下引用此帖，

【交流】N掺杂不能形成P型ZnO？
http://muchong.com/bbs/viewthread.php?tid=1816406

*************************************************************

[ Last edited by nofrunolif on 2012-4-12 at 10:20 ]

回复此楼

» 本帖附件资源列表

欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com
附件 1 : P-Type Nitrogen-Doped ZnO Nanoparticles Stable under Ambient Conditions.pdf

2012-04-07 10:06:54, 896.48 K