Quantum-Dot-Sensitized Solar Cells Fabricated by the Combined Process of the Direct Attachment of Colloidal CdSe Quantum Dots Having a ZnS Glue Layer and Spray Pyrolysis Deposition

被引：44

作者：

Im, Sang Hyuk ^{[1
]}

Lee, Yong Hui ^{[1
]}

Seok, Sang Il ^{[1
]}

Kim, Sung Woo ^{[2
]}

Kim, Sang-Wook ^{[2
]}

机构：

[1] Korea Res Inst Chem Technol, KRICT EPFL Global Res Lab, Adv Mat Div, Taejon 305600, South Korea

[2] Ajou Univ, Dept Mol Sci & Technol, Suwon 443749, South Korea

来源：

LANGMUIR | 2010年 / 26卷 / 23期

关键词：

TIO2; EMISSION; DYNAMICS;

D O I：

10.1021/la1034382

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We were able to attach CdSe quantum dots (QDs) having a ZnS inorganic glue layer directly to a mesoporous TiO2 (mp-TiO2) surface by spray coating and thermal annealing. Quantum-dot-sensitized solar cells based on CdSe QDs having ZnS as the inorganic glue layer could easily transport generated charge carriers because of the intimate bonding between CdSe and mp-TiO2. The application of spray pyrolysis deposition (SPD) to obtain additional CdSe layers improved the performance characteristics to V-oc = 0.45 V, J(sc) = 10.7 mA/cm(2), fill factor = 35.8%, and power conversion efficiency = 1.7%. Furthermore, ZnS post-treatment improved the device performance to V-oc = 0.57 V, J(sc) = 11.2 mA/cm(2), fill factor = 35.4%, and power conversion efficiency = 2.2%.

引用

页码：18576 / 18580

页数：5

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