Application of aqueous Ag:ZnInSe quantum dots to non-toxic sensitized solar cells

The solar energy is one of the potential renewable green energy source considering the availability of sunlight in abundance and the need for clean and renewable source of energy. Quantum dots are semiconductor nanocrystals having considerable interest in photovoltaic research areas. Cadmium sulfide-sensitized solar cells are synthesized by Chemical bath deposition and titanium nanowires were fabricated by hydrothermal method. The synthesized CdS quantum dots are sensitized to nanoporous TiO2 films to form quantum dots-sensitized solar cell applications. The introduction of TNWs enables the electrolyte to penetrate easily inside the film which increases the interfacial contact between the nanowires, the quantum dots and the electrolyte results in improvement in efficiency of solar cell. The goal of our research is to understand the fundamental physics and performance of quantum dot-sensitized solar cells with improved photoconversion efficiency at the low cost based on selection of TiO2 nanostructures, sensitizers and electrodes through an integrated experimental and modeling study.

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Quantum Dot Sensitized Solar Cell: Photoanodes, Counter Electrodes, and Electrolytes

Molecules ◽

10.3390/molecules26092638 ◽

2021 ◽

Vol 26 (9) ◽

pp. 2638

Author(s):

Nguyen Thi Kim Chung ◽

Phat Tan Nguyen ◽

Ha Thanh Tung ◽

Dang Huu Phuc

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Quantum Dot ◽

Photon Absorption ◽

Dye Molecules ◽

Charge Generation ◽

Counter Electrodes ◽

Advantages And Disadvantages ◽

Efficiency Performance ◽

Sensitized Solar Cells

In this study, we provide the reader with an overview of quantum dot application in solar cells to replace dye molecules, where the quantum dots play a key role in photon absorption and excited charge generation in the device. The brief shows the types of quantum dot sensitized solar cells and presents the obtained results of them for each type of cell, and provides the advantages and disadvantages. Lastly, methods are proposed to improve the efficiency performance in the next researching.

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.873.556 ◽

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.

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A comprehensive study of chalcogenide quantum dot sensitized solar cells with a new solar cell exceeding 1 V output

Renewable and Sustainable Energy Reviews ◽

10.1016/j.rser.2015.07.133 ◽

2015 ◽

Vol 52 ◽

pp. 1083-1092 ◽

Cited By ~ 18

Author(s):

Karan Surana ◽

R.M. Mehra ◽

B. Bhattacharya ◽

Hee-Woo Rhee ◽

Anji Reddy Polu ◽

...

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Quantum Dot ◽

Sensitized Solar Cells ◽

Comprehensive Study

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Ag+ ion doped on the CdSe quantum dots for quantum-dot-sensitized solar cells’ application

Applied Physics A ◽

10.1007/s00339-019-2797-0 ◽

2019 ◽

Vol 125 (8) ◽

Cited By ~ 8

Author(s):

Ha Thanh Tung ◽

Doan Van Thuan ◽

Jun Hieng Kiat ◽

Dang Huu Phuc

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Quantum Dot ◽

Cdse Quantum Dots ◽

Sensitized Solar Cells

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High Efficiency Quantum Dot Sensitized Solar Cells Based on Direct Adsorption of Quantum Dots on Photoanodes

ACS Applied Materials & Interfaces ◽

10.1021/acsami.7b05598 ◽

2017 ◽

Vol 9 (27) ◽

pp. 22549-22559 ◽

Cited By ~ 24

Author(s):

Wenran Wang ◽

Guocan Jiang ◽

Juan Yu ◽

Wei Wang ◽

Zhenxiao Pan ◽

...

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Quantum Dot ◽

High Efficiency ◽

Sensitized Solar Cells ◽

Direct Adsorption

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Enhanced Electron Lifetime of CdSe/CdS Quantum Dot (QD) Sensitized Solar Cells Using ZnSe Core–Shell Structure with Efficient Regeneration of Quantum Dots

The Journal of Physical Chemistry C ◽

10.1021/jp510339z ◽

2015 ◽

pp. 150123143809004 ◽

Cited By ~ 9

Author(s):

Rasin Ahmed ◽

Long Zhao ◽

Attila J. Mozer ◽

Geoffrey Will ◽

John Bell ◽

...

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Quantum Dot ◽

Shell Structure ◽

Core Shell ◽

Electron Lifetime ◽

Cds Quantum Dot ◽

Efficient Regeneration ◽

Core Shell Structure ◽

Sensitized Solar Cells

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Charge generation performance enhancement by size-dependent Cu2GeSe3quantum dot-sensitized solar cells

Functional Materials Letters ◽

10.1142/s179360471850090x ◽

2019 ◽

Vol 12 (01) ◽

pp. 1850090

Author(s):

Zhou Liu ◽

Zhuoyin Peng ◽

Jianlin Chen ◽

Wei Li ◽

Jian Chen ◽

...

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Quantum Dot ◽

Conversion Efficiency ◽

Performance Enhancement ◽

Photovoltaic Performance ◽

Charge Generation ◽

Transfer Property ◽

Photon Conversion ◽

Sensitized Solar Cells

Cu2GeSe3 quantum dot is introduced to instead of non-toxic CuInSe2 as a sensitizer for solar cells, which is employed to enhance the photovoltaic performance. Cu2GeSe3 quantum dots with various sizes are prepared by thermolysis process, which are employed for the fabrication of quantum dot-sensitized solar cells (QDSSC) according to assembly linking process. The optical absorption properties of the Cu2GeSe3 quantum dot-sensitized photo-electrodes have been obviously enhanced by the size optimization of quantum dots, which are better than that of CuInSe2-based photo-electrodes. Due to the balance on the deposition quantity and charge transfer property of the quantum dots, 3.9[Formula: see text]nm-sized Cu2GeSe3 QDSSC exhibits the highest current density value and incident photon conversion efficiency response, which result in a higher photovoltaic conversion efficiency than that of CuInSe2 QDSSC. The modulation of Cu2GeSe3 QDs will further improve the performance of photovoltaic devices.

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Investigation of Quantum Dot Solar Cell Device Performance

MRS Proceedings ◽

10.1557/opl.2013.959 ◽

2013 ◽

Vol 1551 ◽

pp. 137-142

Author(s):

Neil S. Beattie ◽

Guillaume Zoppi ◽

Ian Farrer ◽

Patrick See ◽

Robert W. Miles ◽

...

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Solar Cell ◽

Quantum Dot ◽

Band Gap ◽

Control Device ◽

Open Circuit ◽

Device Performance ◽

Intermediate Band ◽

Control Devices

ABSTRACTThe device performance of GaAs p-i-n solar cells containing stacked layers of self-assembled InAs quantum dots is investigated. The solar cells demonstrate enhanced external quantum efficiency below the GaAs band gap relative to a control device without quantum dots. This is attributed to the capture of sub-band gap photons by the quantum dots. Analysis of the current density versus voltage characteristic for the quantum dot solar cell reveals a decrease in the series resistance as the device area is reduce from 0.16 cm2 to 0.01 cm2. This is effect is not observed in control devices and is quantum dot related. Furthermore, low temperature measurements of the open circuit voltage for both quantum dot and control devices provide experimental verification of the conditions required to realise an intermediate band gap solar cell.

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