Journal ArticleDOI
Optical modeling of a-Si:H solar cells with rough interfaces: Effect of back contact and interface roughness
Reads0
Chats0
TLDR
In this article, the effect of front window contact roughness and back contact material on the optical properties of a single junction a-Si:H superstrate solar cell was investigated using computer modeling.Abstract:
An approach to study the optical behavior of hydrogenated amorphous silicon solar cells with rough interfaces using computer modeling is presented. In this approach the descriptive haze parameters of a light scattering interface are related to the root mean square roughness of the interface. Using this approach we investigated the effect of front window contact roughness and back contact material on the optical properties of a single junction a-Si:H superstrate solar cell. The simulation results for a-Si:H solar cells with SnO2:F as a front contact and ideal Ag, ZnO/Ag, and Al/Ag as a back contact are shown. For cells with an absorber layer thickness of 150–600 nm the simulations demonstrate that the gain in photogenerated current density due to the use of a textured superstrate is around 2.3 mA cm−2 in comparison to solar cells with flat interfaces. The effect of the front and back contact roughness on the external quantum efficiency (QE) of the solar cell for different parts of the light spectrum was de...read more
Citations
More filters
Journal ArticleDOI
TCO and light trapping in silicon thin film solar cells
TL;DR: In this article, the effect of aluminum-doped zinc oxide (ZnO:Al) front contact and the role of the back reflector on the performance of thin-film silicon solar cells is investigated.
Journal ArticleDOI
Effects of carrier concentration on the dielectric function of ZnO:Ga and In 2 O 3 : Sn studied by spectroscopic ellipsometry: Analysis of free-carrier and band-edge absorption
Hiroyuki Fujiwara,Michio Kondo +1 more
TL;DR: In this article, the dielectric functions of transparent conductive oxides with different carrier concentrations were derived from spectroscopic ellipsometry using the Drude and Tauc-Lorentz models.
Journal ArticleDOI
Plasmonic Light Trapping in Thin-film Silicon Solar Cells with Improved Self-Assembled Silver Nanoparticles
TL;DR: It is demonstrated experimentally that a back reflector with plasmonic Ag nanoparticles can provide light-trapping performance comparable to state-of-the-art random textures in n-i-p amorphous silicon solar cells.
Journal ArticleDOI
Aqueous dye-sensitized solar cells
TL;DR: The present review tries to address the highly topical role of water in DSSCs, trying to figure out if it is a poisoner or the keyword to success, by means of a thoroughly detailed analysis of all the established phenomena in an aqueous environment.
Journal ArticleDOI
Enhancement of light extraction from light emitting diodes
TL;DR: In this paper, the authors reviewed approaches to enhanced light extraction grouped into two sets depending on whether their application results in the change in the spontaneous emission rate or the angular distribution, or both.
References
More filters
Journal ArticleDOI
Relation between Surface Roughness and Specular Reflectance at Normal Incidence
H. E. Bennett,J. O. Porteus +1 more
TL;DR: In this paper, the roughness of a plane surface is related to its specular reflectance at normal incidence, and expressions for the case when the root mean square surface roughness is small compared to the wavelength of light are presented.
Book
Amorphous and Microcrystalline Silicon Solar Cells: Modeling, Materials and Device Technology
Ruud E. I. Schropp,Miro Zeman +1 more
TL;DR: The technology of amorphous and microcrystalline silicon solar cells has been studied in this paper, where the authors present an overview of the properties of solar cells and their properties in terms of optical, electronic and structural properties.
Journal ArticleDOI
Relation between the Height Distribution of a Rough Surface and the Reflectance at Normal Incidence
TL;DR: In this article, the root-mean-square (rms) roughness of a plane surface and its specular reflectance at normal incidence has been reported previously for the case when the roughness is small compared to the wavelength of light.
Journal ArticleDOI
Numerical modeling of the optical properties of hydrogenated amorphous‐silicon‐based p‐i‐n solar cells deposited on rough transparent conducting oxide substrates
TL;DR: In this paper, a semi-empirical model of thin-film solarcell optics is presented, taking into account the interface roughness by introducing experimentally derived scattering coefficients and treating the propagation of specular light in a rigorous way.