| 查看: 343 | 回复: 0 | |||
xingangahu木虫 (小有名气)
|
[交流]
Nature——semiconducting polymers——Blom
|
|
Blom 大作 最新 nature 文章 abstract Electron transport in semiconducting polymers is usually inferior to hole transport, which is ascribed to charge trapping on isolated defect sites situated within the energy bandgap. However, a general understanding of the origin of these omnipresent charge traps, as well as their energetic position, distribution and concentration, is lacking. Here we investigate electron transport in a wide range of semiconducting polymers by current–voltage measurements of single-carrier devices. We observe for this materials class that electron transport is limited by traps that exhibit a Gaussian energy distribution in the bandgap. Remarkably, the electron-trap distribution is identical for all polymers considered: the number of traps amounts to 3×10^23 traps per m3 centred at an energy of 3.6 eV below the vacuum level, with a typical distribution width of 0.1 eV. This indicates that the electron traps have a common origin that, we suggest, is most likely related to hydrated oxygen complexes. A consequence of this finding is that the trap-limited electron current can be predicted for any polymer. |
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 : 2012-nmat-Blom.pdf
2012-09-25 10:33:06, 367.58 K
» 猜你喜欢
稀土发光分析｜核壳结构｜寿命拟合
已经有6人回复
-
稀土发光分析｜核壳结构｜寿命拟合
已经有0人回复
-
金属材料论文润色/翻译怎么收费?
已经有114人回复
-
稀土发光分析｜核壳结构｜寿命拟合
已经有0人回复
-
26 届青岛大学纺织化学与染整工程硕士（液体纳米分散染料方向）求申博建议
已经有4人回复
-
26 届青岛大学纺织化学与染整工程（液体纳米分散染料）求浙理工纺织 / 材料博导名额
已经有1人回复
-
敢问Acta Pharmaceutica Sinica B with Editor 三周了，能是什么情况？
已经有0人回复
-
求助 CeO2 Fe3O4 Cu2S CoFe2O4 标准卡 Jade 导出的数据
已经有0人回复
-
求助一篇MEMS散热器件文献
已经有0人回复
-
材化专业SCI论文（职称评定）
已经有0人回复
找到一些相关的精华帖子，希望有用哦~
点击这里搜索更多相关资源科研从小木虫开始，人人为我，我为人人
20