scholarly journals Quantitative Determination of Luminescent Coupling in Multijunction Solar Cells from Spectral Photovoltage Measurements

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
D. Fuertes Marrón ◽  
E. Barrigón ◽  
M. Ochoa ◽  
I. Artacho
Keyword(s):  
Solar Cells ◽  
Quantitative Determination ◽  
Multijunction Solar Cells

scholarly journals A Computationally Efficient Multidiode Model for Optimizing the Front Grid of Multijunction Solar Cells under Concentration

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Chris H. van de Stadt ◽  
Pilar Espinet Gonzalez ◽  
Harry A. Atwater ◽  
Rebecca Saive
Keyword(s):  
Solar Cells ◽  
Operating Conditions ◽  
Design Parameters ◽  
Computationally Efficient ◽  
Fast Determination ◽  
Wide Range ◽  
Multijunction Solar Cells ◽  
Efficiency Increase ◽  
Light Concentration

We have developed a computationally efficient simulation model for the optimization of redirecting electrical front contacts for multijunction solar cells under concentration, and we present its validation by comparison with experimental literature results. The model allows for fast determination of the maximum achievable efficiency under a wide range of operating conditions and design parameters such as the contact finger redirecting capability, period and width of the fingers, the light concentration, and the metal and emitter sheet resistivity. At the example of a state-of-the-art four-junction concentrator solar cell, we apply our model to determine ideal operating conditions for front contacts with different light redirection capabilities. We find a 7% relative efficiency increase when enhancing the redirecting capabilities from 0% to 100%.

Electroabsorption studies of organic p-i-n solar cells: evaluating the built-in voltage

2014 ◽  
Vol 1639 ◽  
Author(s):  
Ellen Siebert-Henze ◽  
Vadim G. Lyssenko ◽  
Robert Brückner ◽  
Moritz Riede ◽  
Karl Leo
Keyword(s):  
Solar Cells ◽  
Electric Field ◽  
Quantitative Determination ◽  
Stark Effect ◽  
Bulk Heterojunction ◽  
Organic P ◽  
Heterojunction Solar Cells ◽  
Novel Approach ◽  
Electroabsorption Spectroscopy

ABSTRACTWe investigate the built-in voltage in organic bulk heterojunction solar cells using electroabsorption spectroscopy based on the Stark effect, i.e. the variation of the absorption energies of a material caused by an electric field. Due to spectral contributions of permanent dipoles, a novel approach for evaluating the EA spectra is required. We use a fitting routine analyzing a broad spectral range instead of using only a single wavelength. A reliable quantitative determination of the built-in voltage is achieved.

High-Speed Quantum Efficiency Determination of Multijunction Solar Cells

2018 ◽  
Vol 8 (1) ◽  
pp. 333-341
Author(s):  
Thomas Missbach ◽  
Simon Andreas Dengler ◽  
Gerald Siefer ◽  
Andreas W. Bett
Keyword(s):  
Solar Cells ◽  
Quantum Efficiency ◽  
High Speed ◽  
Multijunction Solar Cells ◽  
Efficiency Determination

Photoelectric determination of the series resistance of multijunction solar cells

2012 ◽  
Vol 46 (8) ◽  
pp. 1051-1058 ◽  
Author(s):  
M. A. Mintairov ◽  
V. V. Evstropov ◽  
N. A. Kalyuzhnyi ◽  
C. A. Mintairov ◽  
N. Kh. Timoshina ◽  
...  
Keyword(s):  
Solar Cells ◽  
Series Resistance ◽  
Multijunction Solar Cells

Quantitative determination of element distributions in silicon based thin film solar cells using SNMS

1995 ◽  
Vol 353 (3-4) ◽  
pp. 478-482
Author(s):  
M. Gastel ◽  
U. Breuer ◽  
H. Holzbrecher ◽  
J. S. Becker ◽  
H. -J. Dietze ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Quantitative Determination ◽  
Thin Film Solar Cells ◽  
Silicon Based

scholarly journals К 125-летию со дня рождения лауреата Нобелевской премии академика Николая Николаевича Семенова Архитектура мезы и эффективность InGaP/Ga(In)As/Ge солнечных элементов

2021 ◽  
Vol 91 (7) ◽  
pp. 1067
Author(s):  
В.С. Калиновский ◽  
Е.В. Контрош ◽  
Е.А. Гребенщикова ◽  
В.М. Андреев
Keyword(s):  
Solar Cells ◽  
Side Surface ◽  
Single Step ◽  
Diffusion Region ◽  
Mesa Structure ◽  
Photoresist Mask ◽  
Multijunction Solar Cells ◽  
Mechanical Separation

It has been shown that the mesa architecture and achieved quality of the mesa sidewall of concentrator multijunction solar cells ensured increasing their efficiency up to 36.7% at the sunlight concentration before 100 (AMO; 0.136W/cm²). Creation of the mesa structure architecture with following separation of epitaxial plates of monolithic InGaP/GaAs/Ge nanoheterostructure into chips was carried out by single step chemical wet etching in the HBr:H2O2:H2O (8:1:100) through a photoresist mask to the depth of 12-18µm. Conditions of single step etching, which ensure formation of a smooth and even side surface of the InGaP/Ga(In)As/Ge nanoheterostructure mesa containing different in composition and thickness layers have been determined. Determination of the activation energy has shown that etching occurs in the diffusion region of the heterogeneous process. In raising etchant temperature from 2 to 36˚C, a change of the tilt angle in the Ge substrate region from 4.5 to 25 angular degrees is observed, what allows optimizing the amount of concentrator solar cells and their quality at final mechanical separation of the epitaxial plate into chips.

Quantitative determination of element distributions in silicon based thin film solar cells using SNMS

1995 ◽  
Vol 353 (3-4) ◽  
pp. 478-482 ◽  
Author(s):  
M. Gastel ◽  
U. Breuer ◽  
H. Holzbrecher ◽  
J. S. Becker ◽  
H.-J. Dietze ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Quantitative Determination ◽  
Thin Film Solar Cells ◽  
Silicon Based

Determination of subcell I-V characteristics of multijunction solar cells using optical coupling

2015 ◽  
Vol 24 (6) ◽  
pp. 760-773 ◽  
Author(s):  
Helmut Nesswetter ◽  
Norman R. Jost ◽  
Paolo Lugli ◽  
Andreas W. Bett ◽  
Claus G. Zimmermann
Keyword(s):  
Solar Cells ◽  
Optical Coupling ◽  
Multijunction Solar Cells
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