Ex Situ CdSe Quantum Dot-Sensitized Solar Cells Employing Inorganic Ligand Exchange To Boost Efficiency

2013 ◽  
Vol 118 (1) ◽  
pp. 214-222 ◽  
Author(s):  
Feng Liu ◽  
Jun Zhu ◽  
Junfeng Wei ◽  
Yi Li ◽  
Linhua Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Ligand Exchange ◽  
Ex Situ ◽  
Inorganic Ligand ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells

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.

scholarly journals A Suitable Polysulfide Electrolyte for CdSe Quantum Dot-Sensitized Solar Cells

2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
H. K. Jun ◽  
M. A. Careem ◽  
A. K. Arof
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Liquid Electrolyte ◽  
Solvent Ratio ◽  
Cdse Qds ◽  
Pure Ethanol ◽  
Cell Efficiency ◽  
Polysulfide Electrolyte ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells

A polysulfide liquid electrolyte is developed for the application in CdSe quantum dot-sensitized solar cells (QDSSCs). A solvent consisting of ethanol and water in the ratio of 8 : 2 by volume has been found as the optimum solvent for preparing the liquid electrolytes. This solvent ratio appears to give higher cell efficiency compared to pure ethanol or water as a solvent. Na2S and S give rise to a good redox couple in the electrolyte for QDSSC operation, and the optimum concentrations required are 0.5 M and 0.1 M, respectively. Addition of guanidine thiocyanate (GuSCN) to the electrolyte further enhances the performance. The QDSSC with CdSe sensitized electrode prepared using 7 cycles of successive ionic layer adsorption and reaction (SILAR) produces an efficiency of 1.41% with a fill factor of 44% on using a polysulfide electrolyte of 0.5 M Na2S, 0.1 M S, and 0.05 M GuSCN in ethanol/water (8 : 2 by volume) under the illumination of 100 mW/cm2white light. Inclusion of small amount of TiO2nanoparticles into the electrolyte helps to stabilize the polysulfide electrolyte and thereby improve the stability of the CdSe QDSSC. The CdSe QDs are also found to be stable in the optimized polysulfide liquid electrolyte.

Inorganic iodide ligands in ex situ PbS quantum dot sensitized solar cells with I−/I3− electrolytes

2012 ◽  
Vol 22 (33) ◽  
pp. 16914 ◽  
Author(s):  
Guangda Niu ◽  
Liduo Wang ◽  
Rui Gao ◽  
Beibei Ma ◽  
Haopeng Dong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Ex Situ ◽  
Sensitized Solar Cells ◽  
Pbs Quantum Dot

Efficient CdSe Quantum Dot-Sensitized Solar Cells Prepared by an Improved Successive Ionic Layer Adsorption and Reaction Process

Nano Letters ◽  
2009 ◽  
Vol 9 (12) ◽  
pp. 4221-4227 ◽  
Author(s):  
HyoJoong Lee ◽  
Mingkui Wang ◽  
Peter Chen ◽  
Daniel R. Gamelin ◽  
Shaik M. Zakeeruddin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Reaction Process ◽  
Layer Adsorption ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells ◽  
Ionic Layer

Effect of Cu2+ ions doped on the photovoltaic features of CdSe quantum dot sensitized solar cells

2018 ◽  
Vol 282 ◽  
pp. 16-23 ◽  
Author(s):  
Tan Phat Nguyen ◽  
Thanh Tung Ha ◽  
Thu Thao Nguyen ◽  
Nhat Phuong Ho ◽  
Thanh Dat Huynh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells

Microwave assisted CdSe quantum dot deposition on TiO2 films for dye-sensitized solar cells

Nanoscale ◽  
2011 ◽  
Vol 3 (5) ◽  
pp. 2188 ◽  
Author(s):  
Guang Zhu ◽  
Likun Pan ◽  
Tao Xu ◽  
Qingfei Zhao ◽  
Bin Lu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Dye Sensitized Solar Cells ◽  
Tio2 Films ◽  
Dye Sensitized ◽  
Microwave Assisted ◽  
Cdse Quantum Dot ◽  
Sensitized Solar Cells
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