| 查看: 1444 | 回复: 7 | |||||||
Dong2533木虫 (小有名气)
|
[交流]
最新Nature nanotechnology上关于 ultraviolet photodetector的文章已有1人参与
|
|
A nanocomposite ultraviolet photodetector based on interfacial trap-controlled charge injection Ultraviolet photodetectors have applications in fields such as medicine, communications and defence1, and are typically made from single-crystalline silicon, silicon carbide or gallium nitride p–n junction photodiodes. However, such inorganic photodetectors are unsuitable for certain applications because of their high cost and low responsivity (<0.2 A W21)2. Solution-processed photodetectors based on organic materials and/or nanomaterials could be significantly cheaper to manu- facture, but their performance so far has been limited2–7. Here, we show that a solution-processed ultraviolet photo- detector with a nanocomposite active layer composed of ZnO nanoparticles blended with semiconducting polymers can significantly outperform inorganic photodetectors. As a result of interfacial trap-controlled charge injection, the photodetec- tor transitions from a photodiode with a rectifying Schottky contact in the dark, to a photoconductor with an ohmic contact under illumination, and therefore combines the low dark current of a photodiode and the high responsivity of a photoconductor (～721–1,001 AW21). Under a bias of <10 V, our device provides a detectivity of 3.4 3 1015 Jones at 360 nm at room temperature, which is two to three orders of magnitude higher than that of existing inorganic semiconductor ultraviolet photodetectors. |
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：libolin3@tal.com - 附件 1 : nnano.2012.187.pdf
2012-11-13 03:54:24, 430.44 K
» 收录本帖的淘贴专辑推荐
 先进材料 | 石墨烯与碳纳米管 | 海外留学经验及留学办理等相关事宜的收录 | 物理专辑 |
» 猜你喜欢
24考博孤注一掷，寄在了复试，但是还是想上一个学
已经有41人回复
-
P4VP的GPC测试
已经有3人回复
-
金属材料论文润色/翻译怎么收费?
已经有184人回复
-
求购商用高炉煤气精脱硫水解催化剂
已经有37人回复
-
中国科学技术大学苏州独墅会议，报销国际差旅，诚邀您的参加！
已经有0人回复
-
中国科学技术大学@苏州·独墅会议，报销国际差旅，诚邀您的参加！
已经有0人回复
-
CV测试为什么非常不稳定
已经有14人回复
-
中山大学孙逸仙纪念医院潘越教授团队招聘博士后（年薪45万），助理实验师
已经有16人回复
-
北京求能测金属粘度的地方
已经有4人回复
-
金属粘度测量
已经有0人回复
» 本主题相关价值贴推荐，对您同样有帮助:
- nature nanotechnology上发表的一片关于纳米药物输送载体的综述
已经有39人回复
- 四篇来自Nature Nanotechnology的最新资源~~~
已经有76人回复
0.8
| 顶一下，感谢分享！ |
2楼2012-11-13 08:46:02
0.8
| 顶一下，感谢分享！ |
3楼2012-11-13 09:04:19
0.8
| 顶一下，感谢分享！ |
4楼2012-11-13 09:21:03
0.8
| 顶一下，感谢分享！ |
5楼2012-11-13 09:46:05
0.8
| 顶一下，感谢分享！ |
6楼2012-11-13 10:07:09
0.8
| 顶一下，感谢分享！ |
7楼2012-11-13 10:47:59
| 谢谢分享 |
8楼2012-11-13 13:46:30
5