Improved performance of CdS/CdSe quantum dot-sensitized solar cells using Mn-doped PbS quantum dots as a catalyst in the counter electrode

2014 ◽  
Vol 117 ◽  
pp. 92-98 ◽  
Author(s):  
Byung-Man Kim ◽  
Min-Kyu Son ◽  
Soo-Kyoung Kim ◽  
Na-Yeong Hong ◽  
Songyi Park ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Counter Electrode ◽  
Cdse Quantum Dot ◽  
Improved Performance ◽  
Sensitized Solar Cells ◽  
Pbs Quantum Dots ◽  
Mn Doped

Anisotropic Nanostructure ZnO Photoelectrodes for CdS/CdSe Quantum Dot Sensitized Solar Cells

2013 ◽  
Vol 873 ◽  
pp. 556-561
Author(s):  
Jian Jun Tian
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Chemical Bath Deposition ◽  
Cdse Quantum Dots ◽  
Silar Method ◽  
Nanorods Array ◽  
Cdse Quantum Dot ◽  
Cbd Method ◽  
Sensitized Solar Cells

CdS/CdSe quantum dots co-sensitized solar cells (QDSCs) were prepared by combining the successive ion layer absorption and reaction (SILAR) method and chemical bath deposition (CBD) method for the fabrication of CdS and CdSe quantum dots, respectively. In this work, we designed anisotropic nanostructure ZnO photoelectrodes, such as nanorods/nanosheets and nanorods array, for CdS/CdSe quantum dots co-sensitized solar cells. Our study revealed that the performance of QDSCs could be improved by modifying surface of ZnO to increase the loading of quantum dots and reduce the charge recombination.

Cu-doped ZnO nanoporous film for improved performance of CdS/CdSe quantum dot-sensitized solar cells

2014 ◽  
Vol 570 ◽  
pp. 310-314 ◽  
Author(s):  
Myeong-Soo Jeong ◽  
Min-Kyu Son ◽  
Soo-Kyoung Kim ◽  
Songyi Park ◽  
Kandasamy Prabakar ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Nanoporous Film ◽  
Cdse Quantum Dot ◽  
Doped Zno ◽  
Improved Performance ◽  
Sensitized Solar Cells

scholarly journals Fabrication, Characterization, and Optimization of CdS and CdSe Quantum Dot-Sensitized Solar Cells with Quantum Dots Prepared by Successive Ionic Layer Adsorption and Reaction

2014 ◽  
Vol 2014 ◽  
pp. 1-14 ◽  
Author(s):  
H. K. Jun ◽  
M. A. Careem ◽  
A. K. Arof
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Solar Cell Performance ◽  
Optimum Performance ◽  
Layer Adsorption ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells ◽  
Ionic Layer ◽  
Dipping Time

CdS and CdSe quantum dot-sensitized solar cells (QDSSCs) were used for the study of determining the optimum preparation parameters that could yield the best solar cell performance. The quantum dots (QDs) were coated on the surface of mesoporous TiO2layer deposited on FTO substrate using the successive ionic layer adsorption and reaction (SILAR) method. In this method the QDs are allowed to grow on TiO2by dipping the TiO2electrode successively in two different solutions for predetermined times. This method allows the fabrication of QDs in a facile way. Three preparation parameters that control the QD fabrication were investigated: concentration of precursor solutions, number of dipping cycles (SILAR cycles), and dipping time in each solution. CdS based QDSSC showed optimum performance when the QDs were prepared from precursor solutions having the concentration of 0.10 M using 4 dipping cycles with the dipping time of 5 minutes in each solution. For CdSe QDSSC, the optimum performance was achieved with QDs prepared from 0.03 M precursor solutions using 7 dipping cycles with 30 s dipping time in each solution. The QDs deposited on TiO2surface were characterized using UV-vis absorption spectroscopy, FESEM, and TEM imaging.

Quantum-Dot-Sensitized Solar Cells with Water-Soluble and Air-Stable PbS Quantum Dots

2014 ◽  
Vol 118 (10) ◽  
pp. 5142-5149 ◽  
Author(s):  
Askhat N. Jumabekov ◽  
Felix Deschler ◽  
Daniel Böhm ◽  
Laurence M. Peter ◽  
Jochen Feldmann ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
Water Soluble ◽  
Sensitized Solar Cells ◽  
Pbs Quantum Dots

Highly efficient and stable quantum dot-sensitized solar cells based on a Mn-doped CuS counter electrode

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2963-2967 ◽  
Author(s):  
Chandu V. V. M. Gopi ◽  
M. Venkata-Haritha ◽  
Soo-Kyoung Kim ◽  
S. Srinivasa Rao ◽  
Dinah Punnoose ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Counter Electrode ◽  
Maximum Efficiency ◽  
Highly Efficient ◽  
Stable Quantum ◽  
Sensitized Solar Cells ◽  
Mn Doped

A maximum efficiency of 5.46% was achieved with low thickness of 10% Mn–CuS counter electrode.

Comparison of Solid-State Quantum-Dot-Sensitized Solar Cells with ex Situ and in Situ Grown PbS Quantum Dots

2014 ◽  
Vol 118 (45) ◽  
pp. 25853-25862 ◽  
Author(s):  
Askhat N. Jumabekov ◽  
Timothy D. Siegler ◽  
Niklas Cordes ◽  
Dana D. Medina ◽  
Daniel Böhm ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Solid State ◽  
Quantum Dot ◽  
Ex Situ ◽  
Sensitized Solar Cells ◽  
Pbs Quantum Dots

scholarly journals Effect of CdS/Mg-Doped CdSe Cosensitized Photoanode on Quantum Dot Solar Cells

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Yingxiang Guan ◽  
Xiaoping Zou ◽  
Sheng He
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
High Performance ◽  
Low Cost ◽  
Energy Conversion Efficiency ◽  
Cdse Qds ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells ◽  
Mg Doped

Quantum dots have emerged as a material platform for low-cost high-performance sensitized solar cells. And doping is an effective method to improve the performance of quantum dot sensitized solar cells (QDSSCs). Since Kwak et al. from South Korea proved the incorporation of Mg in the CdSe quantum dots (QDs) in 2007, the Mg-doped CdSe QDs have been thoroughly studied. Here we report a new attempt on CdS/Mg-doped CdSe quantum dot cosensitized solar cells (QDCSSC). We analyzed the performance of CdS/Mg-doped CdSe quantum dot cosensitized solar cells via discussing the different doping concentration of Mg and the different SILAR cycles of CdS. And we studied the mechanism of CdS/Mg-doped CdSe QDs in detail for the reason why the energy conversion efficiency had been promoted. It is a significant instruction on the development of Mg-doped CdSe quantum dot sensitized solar cells (QDSSCs).

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