24小时热门版块排行榜    

查看: 789  |  回复: 2
本帖产生 1 个 翻译EPI ,点击这里进行查看

夏露相随

铜虫 (初入文坛)

[求助] ZNO/聚合物制备光电器件

The stability under strong sunlight and lifetime is also a critical
parameter for polymer based solar cell, because polymer degra-
dation takes place under strong sunlight, high temperature and
some other side-reaction with metal electrode and water or
oxygen. The different degradation and failure mechanism of poly-
mer based are reviewed recently [32]. It is not viable to performthe
stability and lifetime measurement for hundreds of hours. We can
measure these under accelerated condition. The combination of
oxygen atmosphere and illumination of PV devices with visible
ight is a candidate for accelerated degradationmeasurement of the
devices. In this work, we perform the stability test at ambient
atmosphere under continuous illumination of white light. The Isc
and Voc of the device as a function of illumination time are shown in
Fig. 8. It is found that Voc of the device decreases to zero in 50 min
under white-light illumination. The photosensitivity of ZnO to the
ight could be one of the reasons to degrade the cell property [32].It
has also been reported that hybrid bulk heterojunction of P3HT and
ZnO nanoparticles increases the lifetime of the devices [34]. After
prolong UV illumination, all electron traps are filled and excessive
free electron causes the ZnO to attain the properties of a conductor
and as a results photovoltaic behavior decreases.

» 猜你喜欢

已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

sltmac

荣誉版主 (知名作家)

优秀版主

认领~~~~~~~~
云淡风轻
2楼2011-07-12 09:37:08
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

sltmac

荣誉版主 (知名作家)

优秀版主

【答案】应助回帖

夏露相随(金币+60, 翻译EPI+1): 很满意,谢谢啦 2011-07-12 10:14:40
强太阳光下的稳定性以及使用寿命对聚合物基太阳能电池来说也是一个决定性的参数,这是因为聚合降解过程是在强太阳光、高温以及一些其它副反应下和金属电极、水或氧气作用下发生的。聚合物基太阳能电池的不同降解和失效机理近来也有研究。
对于花费数百个小时来测定其稳定性和使用寿命也是不可取的。我们在加速条件下测量了这些参数。器件的降解加速测试是在氧气氛围以及光伏器件可见光照射双重条件下完成的。本研究中,我们通过在白光源连续照射下在空气中对其稳定性进行了测试。图8是器件的Isc和Voc对光照时间的函数。我们发现,在白光源照射下,50分钟内器件的Voc降到零。ZnO的光敏性可能是降低该电池性能的原因之一。据报道,P3HT 和 ZnO纳米粒子形成的混合异质结能延长器件的使用寿命。延长紫外光照时间后,所以的电子阱都被填满,过剩的自由电子使得ZnO能获得导体的性能,导致的结果是光致电压的降低。
云淡风轻
3楼2011-07-12 09:58:55
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 夏露相随 的主题更新
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 求调剂 +3 十三加油 2026-03-21 3/150 2026-03-21 13:18 by zhukairuo
[考研] 301求调剂 +10 yy要上岸呀 2026-03-17 10/500 2026-03-21 03:14 by JourneyLucky
[考研] 303求调剂 +5 睿08 2026-03-17 7/350 2026-03-21 03:11 by JourneyLucky
[考研] 307求调剂 +10 冷笙123 2026-03-17 10/500 2026-03-21 01:54 by JourneyLucky
[考研] 一志愿南京理工大学085701资源与环境302分求调剂 +4 葵梓卫队 2026-03-18 6/300 2026-03-20 23:02 by JourneyLucky
[考研] 317求调剂 +5 申子申申 2026-03-19 9/450 2026-03-20 22:26 by JourneyLucky
[考研] 287求调剂 +7 晨昏线与星海 2026-03-19 8/400 2026-03-20 22:19 by JourneyLucky
[考研] 一志愿华中农业071010,总分320求调剂 +3 困困困困坤坤 2026-03-20 3/150 2026-03-20 20:38 by 学员8dgXkO
[考研] 295材料求调剂,一志愿武汉理工085601专硕 +5 Charlieyq 2026-03-19 5/250 2026-03-20 20:35 by JourneyLucky
[考研] 260求调剂 +3 朱芷琳 2026-03-20 3/150 2026-03-20 20:35 by 学员8dgXkO
[考研] 材料学求调剂 +4 Stella_Yao 2026-03-20 4/200 2026-03-20 20:28 by ms629
[考研] 工科材料085601 279求调剂 +7 困于星晨 2026-03-17 9/450 2026-03-20 17:38 by 无懈可击111
[考研] 0703化学调剂 +5 pupcoco 2026-03-17 8/400 2026-03-19 13:58 by houyaoxu
[考研] 收复试调剂生 +4 雨后秋荷 2026-03-18 4/200 2026-03-18 14:16 by elevennnne
[考研] 0854,计算机类招收调剂 +3 胡辣汤放糖 2026-03-15 6/300 2026-03-18 12:09 by 上岸上岸……..
[考研] 293求调剂 +11 zjl的号 2026-03-16 16/800 2026-03-18 08:10 by zhukairuo
[考研] 085601求调剂 +4 Du.11 2026-03-16 4/200 2026-03-17 17:08 by ruiyingmiao
[考研] 一志愿南京大学,080500材料科学与工程,调剂 +4 Jy? 2026-03-16 4/200 2026-03-17 11:02 by gaoqiong
[考研] 283求调剂 +3 听风就是雨; 2026-03-16 3/150 2026-03-17 07:41 by 热情沙漠
[考研] 机械专硕325,寻找调剂院校 +3 y9999 2026-03-15 5/250 2026-03-16 19:58 by y9999
信息提示
请填处理意见