scholarly journals Modelling of Dual-Junction Solar Cells including Tunnel Junction

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Abdelaziz Amine ◽  
Yamina Mir ◽  
Mimoun Zazoui
Keyword(s):  
Solar Cells ◽  
Electrical Resistance ◽  
High Efficiency ◽  
Equivalent Circuit Model ◽  
Tunnel Diodes ◽  
Space Applications ◽  
Output Performance ◽  
Photovoltaic Energy Conversion ◽  
Current Voltage ◽  
The Individual

Monolithically stacked multijunction solar cells based on III–V semiconductors materials are the state-of-art of approach for high efficiency photovoltaic energy conversion, in particular for space applications. The individual subcells of the multi-junction structure are interconnected via tunnel diodes which must be optically transparent and connect the component cells with a minimum electrical resistance. The quality of these diodes determines the output performance of the solar cell. The purpose of this work is to contribute to the investigation of the tunnel electrical resistance of such a multi-junction cell through the analysis of the current-voltage (J-V) characteristics under illumination. Our approach is based on an equivalent circuit model of a diode for each subcell. We examine the effect of tunnel resistance on the performance of a multi-junction cell using minimization of the least squares technique.

Current-voltage characteristics of high-efficiency silicon solar cells from photoluminescence

2004 ◽  
Vol 85 (18) ◽  
pp. 4222-4224 ◽  
Author(s):  
L. Ferraioli ◽  
P. Maddalena ◽  
A. Parretta ◽  
A. Wang ◽  
J. Zhao
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Silicon Solar Cells ◽  
Current Voltage ◽  
Current Voltage Characteristics

scholarly journals Electrical and Capacitance Diagnostic Techniques as a Support for the Development of Silicon Heterojunction Solar Cells

2014 ◽  
Vol 65 (2) ◽  
pp. 111-115 ◽  
Author(s):  
Miroslav Mikolášek ◽  
Michal Nemec ◽  
Jaroslav Kováč ◽  
Ladislav Harmatha ◽  
Lukáš Minařík
Keyword(s):  
Solar Cells ◽  
Crystalline Silicon ◽  
Diagnostic Techniques ◽  
Diagnostic Tools ◽  
Heterojunction Solar Cells ◽  
Output Performance ◽  
Cell Structures ◽  
Current Voltage ◽  
Light Management

Abstract In this paper we present the utilization of capacitance and current-voltage diagnostic techniques to analyse silicon heterojunction solar cell structures properties, particularly focused on the inspection of the amorphous emitter and amorphous silicon/crystalline silicon hetero-interface. The capacitance characterization of investigated samples have revealed the need for improvement of the a-Si:H/c-Si heterointerface quality as a main direction to obtain superior output performance of heterojunction cells. In addition, current-voltage characterization emphasized importance for enhancement of the light management in the structure. The obtained results demonstrate that electrical and capacitance diagnostic techniques can represents important diagnostic tools in the process of optimization of solar cells.

Characterization of Cu(In,Ga)Se2/Mo Interface in CIGS Solar Cells

1997 ◽  
Vol 485 ◽  
Author(s):  
S. Nishiwaki ◽  
N. Kohara ◽  
T. Negami ◽  
M. Nishitani ◽  
T. Wada
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Soda Lime ◽  
Film Deposition ◽  
Soda Lime Glass ◽  
X Ray Diffraction ◽  
Transmission Electron ◽  
Current Voltage ◽  
Stage Process ◽  
Cigs Solar Cells

AbstractThe interface between a Cu(In,Ga)Se2 (CIGS) and an underlying Mo layer was studied by X-ray diffraction and high resolution transmission electron microscopy. The CIGS layer was deposited onto Mo coated soda-lime glass using the “3-stage” process. A MoSe2 layer found to form at the CIGS/Mo interface during the 2nd stage of the “3-stage” process. The thickness of the MoSe2 layer depended on the substrate temperature used for CIGS film deposition as well as the Na content of the CIGS and/or Mo layers. For higher substrate temperatures, thicker MoSe2 layers were observed. The Na in the CIGS and/or Mo layer is felt to assist in the formation of MoSe2. Current-Voltage measurements of the heterojunction formed by the CIGS/Mo interface were ohmic even at low temperature. The role of the MoSe2 layer in high efficiency CIGS solar cells is discussed.

Efficient perovskite solar cells with negligible hysteresis achieved by sol–gel-driven spinel nickel cobalt oxide thin films as the hole transport layer

2019 ◽  
Vol 7 (24) ◽  
pp. 7288-7298 ◽  
Author(s):  
Ju Ho Lee ◽  
Young Wook Noh ◽  
In Su Jin ◽  
Sang Hyun Park ◽  
Jae Woong Jung
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Sol Gel ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Critical Issue ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Current Voltage

Current–voltage hysteresis is a critical issue that impacts the photovoltaic performance of perovskite solar cells, and thus, it is imperative to develop high-efficiency perovskite solar cells without hysteresis behavior.

scholarly journals Influence of Schottky contact on the C-V and J-V characteristics of HTM-free perovskite solar cells

2017 ◽  
Vol 8 ◽  
pp. 85501 ◽  
Author(s):  
Y. Huang ◽  
S. Aharon ◽  
A. Rolland ◽  
L. Pedesseau ◽  
O. Durand ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Schottky Contact ◽  
Hole Transport ◽  
Small Signal ◽  
Drift Diffusion ◽  
Current Voltage ◽  
Capacitance Voltage ◽  
Work Functions

The influence of the Schottky contact is studied for hole transport material (HTM) free CH3NH3PbI3 perovskite solar cells (PSCs), by using drift-diffusion and small signal models. The basic current-voltage and capacitance-voltage characteristics are simulated in reasonable agreement with experimental data. The build in potential of the finite CH3NH3PbI3 layer is extracted from a Mott-Schottky capacitance analysis. Furthermore, hole collector conductors with work-functions of more than 5.5 eV are proposed as solutions for high efficiency HTM-free CH3NH3PbI3 PSCs.

Reply to “Comment on ‘Simulation of current–voltage curves for inverted structure perovskite solar cells using equivalent circuit model with inductance’ ”

2017 ◽  
Vol 10 (5) ◽  
pp. 059102 ◽  
Author(s):  
Ludmila Cojocaru ◽  
Satoshi Uchida ◽  
Piyankarage V. V. Jayaweera ◽  
Shoji Kaneko ◽  
Yasutake Toyoshima ◽  
...  
Keyword(s):  
Solar Cells ◽  
Equivalent Circuit ◽  
Perovskite Solar Cells ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Inverted Structure ◽  
Current Voltage

scholarly journals Hybrid Materials for Solar Cells

2021 ◽  
pp. 149-174
Author(s):  
U. Fegade
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Organic Solar Cells ◽  
High Efficiency ◽  
Low Cost ◽  
Dye Sensitized Solar Cells ◽  
Space Applications ◽  
Tandem Solar Cells ◽  
Low Efficiency ◽  
Sensitized Solar Cells

Solar energy is an attractive renewable energy source across the globe that can help overcome the energy crises and has the ability to replace conventional resources. Hybrid solar cells have higher conversion efficiency. In the current chapter the research related to the carbon nanotubes, organic and inorganic solar cell, dye-sensitized solar cells and tandem solar cells are reviewed. The organic solar cells are most suitable and economic, but it has low efficiency of up to 15%. The inorganic solar cells are very expensive and have high efficiency of up to 46% and are used in space applications. The hybrid solar cell is the third type and the perovskite tandem has already proven to be quite efficient (17%) and low cost, mostly because of the cheap materials that are being used.

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