Modeling of annealing kinetics for hydrogenated-amorphous-silicon-based solar cells using two-component metastable defects

2006 ◽  
Vol 88 (24) ◽  
pp. 243510 ◽  
Author(s):  
Seung Yeop Myong ◽  
Koeng Su Lim
Keyword(s):  
Solar Cells ◽  
Amorphous Silicon ◽  
Hydrogenated Amorphous Silicon ◽  
Two Component ◽  
Silicon Based ◽  
Hydrogenated Amorphous

scholarly journals Numerical Design of Ultrathin Hydrogenated Amorphous Silicon-Based Solar Cell

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
F. X. Abomo Abega ◽  
A. Teyou Ngoupo ◽  
J. M. B. Ndjaka
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Amorphous Silicon ◽  
Buffer Layer ◽  
Defect Density ◽  
Hydrogenated Amorphous Silicon ◽  
Theoretical Work ◽  
Silicon Based ◽  
The Impact ◽  
Hydrogenated Amorphous

Numerical modelling is used to confirm experimental and theoretical work. The aim of this work is to present how to simulate ultrathin hydrogenated amorphous silicon- (a-Si:H-) based solar cells with a ITO BRL in their architectures. The results obtained in this study come from SCAPS-1D software. In the first step, the comparison between the J-V characteristics of simulation and experiment of the ultrathin a-Si:H-based solar cell is in agreement. Secondly, to explore the impact of certain properties of the solar cell, investigations focus on the study of the influence of the intrinsic layer and the buffer layer/absorber interface on the electrical parameters ( J SC , V OC , FF, and η ). The increase of the intrinsic layer thickness improves performance, while the bulk defect density of the intrinsic layer and the surface defect density of the buffer layer/ i -(a-Si:H) interface, respectively, in the ranges [109 cm-3, 1015 cm-3] and [1010 cm-2, 5 × 10 13  cm-2], do not affect the performance of the ultrathin a-Si:H-based solar cell. Analysis also shows that with approximately 1 μm thickness of the intrinsic layer, the optimum conversion efficiency is 12.71% ( J SC = 18.95   mA · c m − 2 , V OC = 0.973   V , and FF = 68.95 % ). This work presents a contribution to improving the performance of a-Si-based solar cells.

Hydrogenated amorphous silicon–germanium thin films with a narrow band gap for silicon-based solar cells

2011 ◽  
Vol 11 (1) ◽  
pp. S50-S53 ◽  
Author(s):  
Chao-Chun Wang ◽  
Chueh-Yang Liu ◽  
Shui-Yang Lien ◽  
Ko-Wei Weng ◽  
Jung-Jie Huang ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Amorphous Silicon ◽  
Band Gap ◽  
Silicon Germanium ◽  
Narrow Band ◽  
Hydrogenated Amorphous Silicon ◽  
Silicon Based ◽  
Amorphous Silicon Germanium ◽  
Hydrogenated Amorphous

scholarly journals Annealing Kinetic Model Using Fast and Slow Metastable Defects for Hydrogenated-Amorphous-Silicon-Based Solar Cells

2007 ◽  
Vol 2007 ◽  
pp. 1-8 ◽  
Author(s):  
Seung Yeop Myong
Keyword(s):  
Solar Cells ◽  
Kinetic Model ◽  
Amorphous Silicon ◽  
Hydrogenated Amorphous Silicon ◽  
Microscopic Mechanism ◽  
Two Component ◽  
Field Annealing ◽  
Annealing Kinetic ◽  
Definition Of ◽  
Hydrogenated Amorphous

The two-component kinetic model employing “fast” and “slow” metastable defects for the annealing behaviors in pin-type hydrogenated-amorphous-silicon- (a-Si:H-) based solar cells is simulated using a normalized fill factor. Reported annealing data on pin-type a-Si:H-based solar cells are revisited and fitted using the model to confirm its validity. It is verified that the two-component model is suitable for fitting the various experimental phenomena. In addition, the activation energy for annealing of the solar cells depends on the definition of the recovery time. From the thermally activated and high electric field annealing behaviors, the plausible microscopic mechanism on the defect removal process is discussed.

Hydrogenated Amorphous Silicon Based Solar Cells: Optimization Formalism and Numerical Algorithm

2009 ◽  
Vol 1153 ◽  
Author(s):  
Anatoli Shkrebtii ◽  
Yuriy Kryuchenko ◽  
Anaroliy Sachenko ◽  
Igor Sokolovskyi ◽  
Franco Gaspari
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Amorphous Silicon ◽  
Hydrogenated Amorphous Silicon ◽  
Amorphous Film ◽  
Solar Cell Performance ◽  
Transparent Conducting ◽  
Silicon Based ◽  
Hydrogenated Amorphous

AbstractThin film hydrogenated amorphous silicon (a-Si:H) is widely used in photovoltaics. In order to get the best possible performance of the a-Si:H solar cells it is important to optimize the amorphous film and solar cells in terms their parameters such as mobility gap, p-, i- and n-layer doping levels, electron and hole lifetime and their mobilities, resistance of p-, i- and n-layers, contact grid geometry and parameters of the transparent conducting and antireflecting layers, and others. To maximize thin a-Si:H film based solar cell performance we have developed a general numerical formalism of photoconversion, which takes into account all the above parameters for the optimization. Application of the formalism is demonstrated for typical a-Si:H based solar cells before Staebler-Wronski (SW) light soaking effect. This general formalism is not limited to a-Si:H based systems only, and it can be applied to other types of solar cells as well.

Grazing Incidence Measurements of Polarized Electroabsorption and Light Soaking Effect on Amorphous Silicon Based Solar Cells

1998 ◽  
Vol 507 ◽  
Author(s):  
Lin Jiang ◽  
Eric A. Schiff ◽  
Qi Wang ◽  
S. Guha ◽  
J. Yang
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Amorphous Silicon ◽  
Hydrogenated Amorphous Silicon ◽  
Grazing Incidence ◽  
Two Dimensional ◽  
Coplanar Electrodes ◽  
The Difference ◽  
Silicon Based ◽  
Hydrogenated Amorphous

ABSTRACTGrazing-incidence measurements of polarized electroabsorption (EA) in p-i-n solar cells based on hydrogenated amorphous silicon (a-Si:H) are presented. We confirm polarized electroabsorption effect of a-Si:H with the present “sandwich” electrodes, in fact, we find a significantly stronger polarization dependence compared with earlier work based on electroabsorption detected using coplanar electrodes on a-Si:H thin films. We did not reproduce the significant dependence of the polarized electroabsorption upon light soaking, which was found in previous work with coplanar electrodes. We speculate the difference between two electrode geometries is due to the space charge and two dimensional fields.

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