Combining novel device architecture and NIR dye towards the fabrication of transparent conductive oxide-less tandem dye sensitized solar cells

被引：9

作者：

Baranwal, Ajay Kumar ^{[1
]}

Fujikawa, Naotaka ^{[1
]}

Hayat, Azwar ^{[1
]}

Ogomi, Yuhei ^{[1
]}

Pandey, Shyam S. ^{[1
]}

Ma, Tingli ^{[1
]}

Hayase, Shuzi ^{[1
]}

机构：

[1] Kyushu Inst Technol, Dept Life Sci & Syst Engn, Div Green Elect, Kitakyushu, Fukuoka 8080196, Japan

来源：

APPLIED PHYSICS EXPRESS | 2015年 / 8卷 / 10期

关键词：

EFFICIENCY; INJECTION; SILICON;

D O I：

10.7567/APEX.8.102301

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Tandem solar cells with different device architectures utilizing a back contact transparent conductive oxide-less bottom electrode (TCO-less tandem DSSC) that has better control of the optical transmission losses incurred by intermediate TCO layers with flexible Pt/tin-doped indium oxide (ITO)-polyethylene terephthalate film as an intermediate layer are reported. The proposed device architecture suppresses the optical loss to a greater extent (around 30%). Sensitizers were ruthenium-based N719 dye in the top electrode, while the newly synthesized phthalocyanine dye (PC25) corresponding to photon harvesting in the near infrared (NIR) region (up to 900nm) was used in the TCO-less bottom cell. Open circuit voltage (V-oc) >= 1.18V (sum of top cell and bottom cell V-oc) justifies the TCO-less tandem DSSC formation. (C) 2015 The Japan Society of Applied Physics

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页数：3

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