Development of high-efficient three-layered organic solid-state solar cell

高效三层有机固态太阳能电池的研制

基本信息

批准号：
18560012
负责人：
HIRAMOTO Masahiro
金额：
$ 2.46万
依托单位：
Osaka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2006
资助国家：
日本
起止时间：
2006 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560012/
关键词：
p-i-n iunction organic solar cells Ultra-high purification seven-nine conversion efficiency of 5.3%1000h operation increase of open-circuit photoyoltage fullerene ZnO transparent electron transport layer P-I-N接合有機太陽電池結晶析出昇華精製効率5.3%

项目摘要

(1) p-i-n organic solar cells having thick codeposited i-interlayer composed of metal-free phthalocyanine and fullerene were successfully fabricated by using fullerene purified seven-nine level (99.99999%) by means of the single-crystal formed sublimation. Fill factor of p-i-n cells hardly decreased even for extremely thick i-interlayer reaching 1200 nm. Short-circuit photocurrent density reached 19 mAcm^<-2> based on nearly 100% absorption of visible light in the solar spectrum by thick i-interlayer. As a result, the photo-electric conversion efficiency of 5.3% (world record) was obtained.(2) Long-term operation tests of p-i-n organic solar cells were performed in various atmosphere. Under high vacuum (<10^<-7> Torr), p-i-n cell covered with Al-doped ZnO film acting as transparent electron transport layer was operated without degradation for 1000 hours (42 days).(3) It has been confirmed that the attainable open-circuit photovoltage (V_<oc>) for organic photovoltaic cells consisting of co-deposited films is determined by the effective bandgap, namely, the energetic difference between the LUMO level of the n-type organic semiconductor and the HOMO level of the p-type organic semiconductor. The observed V_<oc> increased with increasing effective bandgap and exceeded 0.7 V.

（1）通过使用富勒烯纯化的7九级（99.99999％），通过单晶形成的单晶形成的过高晶片，成功制造了由无金属邻苯二甲酰胺和富勒烯组成的P-i-N有机太阳能电池。即使对于达到1200 nm的极厚的I互层层，P-I-N细胞的填充系数也几乎不会降低。基于厚的I-Interlayer在太阳光谱中可见光的接近100％吸收，短路光电流密度达到19 MacM^<-2>。结果，获得了5.3％（世界记录）的光电转换效率。（2）在各种大气中进行了P-I-N有机太阳能电池的长期操作测试。 Under high vacuum (<10^<-7> Torr), p-i-n cell covered with Al-doped ZnO film acting as transparent electron transport layer was operated without degradation for 1000 hours (42 days).(3) It has been confirmed that the attainable open-circuit photovoltage (V_<oc>) for organic photovoltaic cells consisting of co-deposited films is determined by the effective bandgap,也就是说，N型有机半导体的Lumo水平与P型有机半导体的HOMO水平之间的能量差。观察到的V_ <oc>随着有效带隙的增加而增加，超过0.7V。