Investigations of rare earth doped CdTe QDs as sensitizers for quantum dots sensitized solar cells

被引：24

作者：

Arivarasan, Ayyaswamy ^{[1
]}

Bharathi, Sambandam ^{[2
]}

Arasi, Sozhan Ezhil ^{[1
]}

Arunpandiyan, Surulinathan ^{[1
]}

Revathy, M. S. ^{[1
]}

Jayavel, Ramasamy ^{[3
]}

机构：

[1] Kalasalingam Acad Res & Educ, Int Res Ctr, Dept Phys, Krishnankoil 626126, Tamil Nadu, India

[2] NGSeq Analyt LLC, San Diego, CA USA

[3] Anna Univ, Crystal Growth Ctr, Chennai 600025, Tamil Nadu, India

来源：

JOURNAL OF LUMINESCENCE | 2020年 / 219卷

关键词：

Quantum dots; Gd:CdTe; Working electrodes; QDSSC; Photo-conversion efficiency; OPTICAL-PROPERTIES; PERFORMANCE; CDSE; IONS;

D O I：

10.1016/j.jlumin.2019.116881

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Gd doped CdTe (Gd:CdTe) QDs sensitized working electrodes were fabricated for QDSSC applications. In this fabrication process, mercapto succinic acid capped Gd:CdTe QDs were synthesized by colloidal method and used as the sensitizer. Improved optical properties of the prepared QDs were examined by optical absorption and emission spectral analysis. Fluorescence quantum yield measurement reveals that 10% Gd:CdTe QDs shows the highest quantum yield of 67%. XRD analysis confirms the cubic zinc blende crystalline structure of the prepared QDs and the dopant concentration dependent cell parameters and crystallite sizes were revealed. Performance of capping molecules over the prepared QDs was analyzed by FT-IR studies. Enhanced photovoltaic performance of prepared pure and doped QDs was analyzed through J-V characteristic curves, which show better photovoltaic response with an efficiency of 2.24% for 10% Gd:CdTe QDs.

引用

页数：9

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