| 查看: 324 | 回复: 3 | |||
| 当前主题已经存档。 | |||
| 【悬赏金币】回答本帖问题，作者04120152将赠送您 2 个金币 | |||
04120152
|
[求助]
请帮忙翻议段落
|
||
|
In recent years organic semiconductors have attracted considerable interest due to th growing potential as active materials in electronic and optoelectronic devices. A long standing paradigm, however. has been seen in their unipolar transport of electrical charges. Thus multi-layer structures comprising different organic materials faith spatially separated electron and hole transport layers inhere used for fabricating efficient organ light-emitting diodes [1]. On the other hand in photovoltaic devices. owing to she exciton diffusion length in organic semiconductors. p- and n-conducting materials need be in close contact which is usually realized by mixing them in one single layer yielding so called bulk-heterojunction structure [2-5]. Recently，such donor-acceptormixtures ha been implemented also in organic field-effect transistors (OFETs). Ambipolar OFE have been realized faith a variety of material combinations. including polymer fullere blends [6], mixtures of soluble oligomers [7] as well as evaporated molecular hetero-lay structures and mixed layers [8]. Our recent studies in this field have focussed on the combination of hole conducting copper-phthalocyanine (CuPc) with the electron conducting fullerene C60. We have investigated OFETs with various mixing ratios and film preparation conditions and have demonstrated ambipolar inverters with these blends [9]. Using photoelectric spectroscopy, Are have recently determined the occupied electronic levels and the changes upon mixing both materials [10]. in this contribution we will summarize the result and discuss their implications in the context of photovoltaic cells based on combination of CuPc as electron donor and C60 as electron acceptor, respectively. particular eve will demonstrate that differences in the open-circuit voltages of heterolayer cells and bulk-heterojunction devices can be traced back to the electronic structure of the blends. |
回复此楼» 猜你喜欢
有没有接收比较快的sci期刊呀，最好在一个月之内的，研三孩子求毕业
已经有6人回复
-
求调剂
已经有6人回复
-
307中医考研调剂
已经有9人回复
-
327求调剂
已经有30人回复
-
294求调剂
已经有15人回复
-
0854求调剂
已经有27人回复
-
300求调剂
已经有12人回复
-
291求调剂
已经有10人回复
-
一志愿沪9，326求生物学调剂
已经有12人回复
-
生物学调剂
已经有10人回复
xiaowenzhi16
铁杆木虫 (正式写手)
- 应助: 0 (幼儿园)
- 金币: 7096.7
- 散金: 50
- 红花: 1
- 帖子: 564
- 在线: 311.7小时
- 虫号: 523628
- 注册: 2008-03-12
- 性别: GG
- 专业: 半导体物理
2楼2008-04-21 16:48:05
04120152 
木虫 (著名写手)
- 应助: 0 (幼儿园)
- 金币: 10127.3
- 散金: 1500
- 红花: 1
- 帖子: 1524
- 在线: 29.8小时
- 虫号: 509283
- 注册: 2008-02-22
- 性别: GG
- 专业: 半导体光电子器件
|
有几处拼写错误 In recent years organic semiconductors have attracted considerable interest due to their growing potential as active materials in electronic and optoelectronic devices. A long-standing paradigm, however, has been seen in their unipolar transport of electrical charges. Thus multi-layer structures comprising different organic materials with spatially separated electron and hole transport layers where used for fabricating efficient organic light-emitting diodes [1]. On the other hand in photovoltaic devices, owing to short exciton diffusion length in organic semiconductors, p- and n-conducting materials need to be in close contact which is usually realized by mixing them in one single layer yielding a so-called bulk-heterojunction structure [2-5]. Recently, such donor-acceptor mixtures have been implemented also in organic field-effect transistors (OFETs). Ambipolar OFETs have been realized with a variety of material combinations, including polymer/fullerene blends [6], mixtures of soluble oligomers [7] as well as evaporated molecular hetero-layer structures and mixed layers [8]. Our recent studies in this field have focussed on the combination of hole conducting copper-phthalocyanine (CuPc) with the electron conducting fullerene C60. We have investigated OFETs with various mixing ratios and film preparation conditions and have demonstrated ambipolar inverters with these blends [9]. Using photoelectron spectroscopy, we have recently determined the occupied electronic levels and their changes upon mixing both materials [10]. In this contribution we will summarize these results and discuss their implications in the context of photovoltaic cells based on a combination of CuPc as electron donor and C60 as electron acceptor, respectively. In particular we will demonstrate that differences in the open-circuit voltages of heterolayer cells and bulk-heterojunction devices can be traced back to the electronic structure of the blends. |
3楼2008-04-21 18:54:44
04120152
木虫 (著名写手)
- 应助: 0 (幼儿园)
- 金币: 10127.3
- 散金: 1500
- 红花: 1
- 帖子: 1524
- 在线: 29.8小时
- 虫号: 509283
- 注册: 2008-02-22
- 性别: GG
- 专业: 半导体光电子器件
4楼2009-01-27 23:59:50
20