TiO2@CdSe/CdS core–shell hollow nanospheres solar paint

RSC Advances ◽  
2014 ◽  
Vol 4 (59) ◽  
pp. 31313-31317 ◽  
Author(s):  
Xiang Zhang ◽  
Hongxia Sun ◽  
Xiyun Tao ◽  
Xingfu Zhou
Keyword(s):  
Solar Cell ◽  
Quantum Dot ◽  
Conversion Efficiency ◽  
Current Density ◽  
Core Shell ◽  
Hollow Nanospheres ◽  
A Current

TiO2@CdSe/CdS hollow nanospheres solar paint were fabricated and directly applied in quantum dot-sensitized solar cell. The reliable conversion efficiency of 0.79 was achieved with a current density of 6.6 mA cm−2.

scholarly journals Effect of Confinement Strength on the Conversion Efficiency of Strained Core-Shell Quantum Dot Solar Cell-=SUP=-*-=/SUP=-

2020 ◽  
Vol 128 (10) ◽  
pp. 1534
Author(s):  
Anupam Sahu ◽  
Dharmendra Kumar
Keyword(s):  
Solar Cell ◽  
Quantum Dot ◽  
Conversion Efficiency ◽  
Cell Structure ◽  
Detailed Balance ◽  
Balance Model ◽  
Core Shell ◽  
Dimensional System ◽  
Multiple Exciton Generation ◽  
Low Dimensional

In this paper, the conversion efficiency (CE) of core-shell quantum dot (CSQD) solar cell is investigated within weak and strong confinements strength, using detailed balance model. The weak and strong confinement strength in solar cell structure is modeled using ZnTe/ZnSe and PbS/CdS CSQD, respectively. Considering size-dependent strain results of CE of CSQD solar cell for varying core radius is plotted with and without considering multiple exciton generation (MEG), and the results show the improvement in CE with MEG, thus indicating its importance in the low-dimensional system. The numerical results demonstrate that for the same CSQD size, the solar cell with a stronger confinement strength achieves the higher CE in comparison to the weaker confinement. Also, the MEG significantly increases the CE of stronger confined CSQD solar cell. The results plotted are in good agreement with the literature. Keywords: conversion efficiency, quantum dot, core-shell, solar cell, multiple exciton generation.

High short-circuit current density in a non-toxic Bi2S3 Quantum dot sensitized solar cell

2021 ◽  
pp. 100783
Author(s):  
Christopher Rosiles-Perez ◽  
Sirak Sidhik ◽  
Luis Ixtilico-Cortés ◽  
Fernando Robles-Montes ◽  
Tzarara López-Luke ◽  
...  
Keyword(s):  
Solar Cell ◽  
Quantum Dot ◽  
Current Density ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density

scholarly journals Simulation of a perovskite sandwich solar cell with the p-CZTS / p-CH3NH3PbCI3 / p-CZTS absorber layers

2021 ◽  
Vol 877 (1) ◽  
pp. 012001
Author(s):  
Marwah S Mahmood ◽  
N K Hassan
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
Current Density ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Current Voltage ◽  
Cell Capacitance

Abstract Perovskite solar cells attract the attention because of their unique properties in photovoltaic cells. Numerical simulation to the structure of Perovskite on p-CZTS/p-CH3NH3PbCI3/p-CZTS absorber layers is performed by using a program solar cell capacitance simulator (SCAPS-1D), with changing absorber layer thickness. The effect of thickness p-CZTS/p-CH3NH3PbCI3/p-CZTS, layers at (3.2μm, 1.8 μm, 1.1 μm) respectively are studied. The obtained results are short circuit current density (Jsc ), open circuit voltage (V oc), fill factor (F. F) and power conversion efficiency (PCE) equal to (28 mA/cm2, 0.83 v, 60.58 % and 14.25 %) respectively at 1.1 μm thickness. Our findings revealed that the dependence of current - voltage characteristics on the thickness of the absorbing layers, an increase in the amount of short circuit current density with an increase in the thickness of the absorption layers and thus led to an increase in the conversion efficiency and improvement of the cell by increasing the thickness of the absorption layers.

scholarly journals Optimization of the InGaP Top Junction of Triple Junction Solar Cell for Spatial Application

2019 ◽  
Vol 14 (1) ◽  
pp. 1-5
Author(s):  
Victor De Rezende Cunha ◽  
Daniel Neves Micha ◽  
Rudy Massami Sakamoto Kawabata ◽  
Luciana Dornelas Pinto ◽  
Mauricio Pamplona Pires ◽  
...  
Keyword(s):  
Solar Cell ◽  
Conversion Efficiency ◽  
Current Density ◽  
Triple Junction ◽  
Short Circuit ◽  
Active Material ◽  
Multiple Quantum Well ◽  
Electrical Current ◽  
Multiple Quantum ◽  
Junction Solar Cell

Electrical current mismatching is a well-known limitation of triple junction solar cells that lowers the final conversion efficiency. Several solutions have been proposed to face this issue, including the insertion of a multiple quantum well structure as the intermediate junction’s active material. With a better matching in the current among the junctions, the total current increases, thus modifying the working conditions of the overall device. In this way, the InGaP top junction needs to be optimized to such new condition. In this work, numerical simulations were carried out aiming the enlargement of the electrical current density of an InGaP pn junction to achieve the proper current matching in triple junction solar cell for spatial applications. The optimized structure has been grown in a GaAs substrate and characterized as a single junction solar cell. Although the measured short circuit current density and conversion efficiency are still well below the theoretically predicted values, processing improvement should lead to adequate cell performance.

scholarly journals The effect of ZnO/ZnSe core/shell nanorod arrays photoelectrodes on PbS quantum dot sensitized solar cell performance

2020 ◽  
Vol 2 (1) ◽  
pp. 286-295 ◽  
Author(s):  
M. Kamruzzaman
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Quantum Dot ◽  
Cell Performance ◽  
Core Shell ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Solar Cell Performance ◽  
Sensitized Solar Cells ◽  
Pbs Quantum Dot

ZnO nanorod (NR) based inorganic quantum dot sensitized solar cells have gained tremendous attention for use in next generation solar cells.

Surface engineering of PbS quantum dot sensitized solar cells with a conversion efficiency exceeding 7%

2016 ◽  
Vol 4 (19) ◽  
pp. 7214-7221 ◽  
Author(s):  
Shuang Jiao ◽  
Jin Wang ◽  
Qing Shen ◽  
Yan Li ◽  
Xinhua Zhong
Keyword(s):  
Solar Cells ◽  
Ion Exchange ◽  
Quantum Dot ◽  
Conversion Efficiency ◽  
Surface Engineering ◽  
Passivation Layer ◽  
Core Shell ◽  
Liquid Junction ◽  
Sensitized Solar Cells ◽  
Pbs Quantum Dot

A CdS passivation layer was introduced to a PbS QD surface to synthesize PbS/CdS core/shell QDs through an ion exchange procedure, achieving a record PCE of 7.19% for PbS-based liquid-junction quantum dot sensitized solar cells.

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