| 查看: 243 | 回复: 7 | ||
| 【奖励】 本帖被评价5次，作者chenrf77增加金币 2.75 个 | ||
| 当前主题已经存档。 | ||
[资源]
Photoconductive Coaxial Nanotubes(Science 很有意思啊)
|
||
|
Photoconductive Coaxial Nanotubes of Molecularly Connected Electron Donor and Acceptor Layers Yohei Yamamoto,1 Takanori Fukushima,1,2* Yuki Suna,1 Noriyuki Ishii,3 Akinori Saeki,4 Shu Seki,4 Seiichi Tagawa,4 Masateru Taniguchi,4 Tomoji Kawai,4 Takuzo Aida1,2* Controlled self-assembly of a trinitrofluorenone-appended gemini-shaped amphiphilic hexabenzocoronene selectively formed nanotubes or microfibers with different photochemical properties. In these nanotubes, which are 16 nanometers in diameter and several micrometers long, a molecular layer of electron-accepting trinitrofluorenone laminates an electron-donating graphitic layer of p-stacked hexabenzocoronene. The coaxial nanotubular structure allows photochemical generation of spatially separated charge carriers and a quick photoconductive response with a large on/off ratio greater than 104. In sharp contrast, the microfibers consist of a charge-transfer complex between the hexabenzocoronene and trinitrofluorenone parts and exhibit almost no photocurrent generation. 觉得有意思的就顶一下了！  [ Last edited by luo.henry on 2008-4-25 at 15:52 ] |
回复此楼» 猜你喜欢
366求调剂
已经有9人回复
-
材料工程085601，270求调剂
已经有37人回复
-
279学硕食品专业求调剂院校
已经有18人回复
-
290调剂生物0860
已经有31人回复
-
一志愿085802 323分求调剂
已经有13人回复
-
277求调剂
已经有23人回复
-
322求调剂，08工科
已经有4人回复
-
材料工程281还有调剂机会吗
已经有30人回复
-
化学070300 求调剂
已经有16人回复
-
化工学硕294分，求导师收留
已经有12人回复
2楼2007-04-06 22:53:44
