Electrical and optical characteristics of silicon nanocrystal solar cells

2009 ◽  
Vol 95 (14) ◽  
pp. 143120 ◽  
Author(s):  
Sang-Kyun Kim ◽  
Chang-Hee Cho ◽  
Baek-Hyun Kim ◽  
Seong-Ju Park ◽  
Jae Won Lee
Keyword(s):  
Solar Cells ◽  
Optical Characteristics ◽  
Silicon Nanocrystal

scholarly journals Effects of Temperature on Morphological, Structural and Optical Characteristics of CdTe Films for PV Applications

2020 ◽  
Vol 27 (1) ◽  
pp. 10-16
Author(s):  
M.A. Salawu ◽  
A.B. Alabi ◽  
J.T. Adeleke ◽  
H.T. Sulu ◽  
S.B. Sharafa ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Energy Band ◽  
Thermal Evaporation ◽  
Optical Transmittance ◽  
Cdte Film ◽  
Crystal Defects ◽  
Optical Characteristics ◽  
Energy Band Gap ◽  
Cdte Films

Cadmium telluride (CdTe) is a direct band gap semiconductor for direct light-to-electricity conversion. The films are promising photovoltaic materials for CdS/CdTe solar cells because of its energy band gap of 1.5 eV and higher absorption co-efficient (>104cm-1). This work presents the characterization of 1 μm CdTe films for photovoltaic applications. The films were deposited on cleaned glass substrates using thermal evaporation. The effect of annealing temperatures (as deposited, 400°C and 500°C) on morphological, structural and optical characteristics of CdTe films was investigated for an hour and characterized with Scanning Electron Microscope (SEM), Powder X-ray diffraction (PXRD) and UV-Visible spectrophotometer. The results revealed that the reflectance characteristics of CdTe films depend on the wavelength of electromagnetic spectra. The maximum percentage optical transmittance of CdTe films for as-grown, 400°C and 500oC films were 59%, 60% and 58% respectively at 800 nm wavelength. The absorbance decreases with increasing in wavelength and was found to be 1.65, 1.25 and 0.85 % for the as-grown, 400°C and 500oC films respectively. The absorption coefficient exhibits higher values in the shorter wavelength and decreases as the wavelength and temperatures increases and the band gap becomes wider. The SEM analyses showed that the films were homogenous and free from crystal defects. The results revealed that 1 μm CdTe film may be used as absorber layer in CdS/CdTe thin film solar cells. Keywords: CdTe, Glass substrate, Thermal evaporation, Annealing temperature, Energy band gap

scholarly journals A silicon nanocrystal/polymer nanocomposite as a down-conversion layer in organic and hybrid solar cells

Nanoscale ◽  
2015 ◽  
Vol 7 (27) ◽  
pp. 11566-11574 ◽  
Author(s):  
V. Svrcek ◽  
T. Yamanari ◽  
D. Mariotti ◽  
S. Mitra ◽  
T. Velusamy ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Nanocomposite ◽  
Hybrid Solar Cells ◽  
Silicon Nanocrystal ◽  
Down Conversion

Demonstration of silicon nanocrystal down-conversion enhancement in PTB7:[70]PCBM based solar cells.

Efficiency Enhancement in Hybrid P3HT/Silicon Nanocrystal Solar Cells

ENERGYO ◽  
2018 ◽  
Author(s):  
Sabrina Niesar ◽  
Wolfgang Fabian ◽  
Nils Petermann ◽  
Daniel Herrmann ◽  
Eberhard Riedle ◽  
...  
Keyword(s):  
Solar Cells ◽  
Efficiency Enhancement ◽  
Silicon Nanocrystal

Integration of Surfactant-Free Silicon Nanocrystal in Hybrid Solar Cells

2012 ◽  
Vol 51 (10S) ◽  
pp. 10NE25 ◽  
Author(s):  
Vladimir Svrcek ◽  
Davide Mariotti ◽  
Toshimi Yamanari ◽  
Koiji Matsubara ◽  
Michio Kondo
Keyword(s):  
Solar Cells ◽  
Hybrid Solar Cells ◽  
Silicon Nanocrystal ◽  
Free Silicon

Correlation Between Electrical-Optical and Structural Properties of Microcrystalline Silicon N Type Films

1996 ◽  
Vol 420 ◽  
Author(s):  
R. Martins ◽  
A. Macarico ◽  
I. Ferreira ◽  
R. Nunes ◽  
A. Bicho ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Structural Properties ◽  
Wide Band ◽  
Optical Devices ◽  
Silicon Films ◽  
Optical Characteristics ◽  
Microcrystalline Silicon ◽  
Wide Band Gap ◽  
Crystalline Materials

AbstractWide band gap microcrystalline silicon films have aroused considerable interest since they combine some electro-optical advantages of amorphous and crystalline materials highly important to produce electro-optical devices such as TFTs and solar cells. In this paper we present results concerning the electro-optical characteristics of highly transparent and conductive n-type µc-Si based films. Here, emphasis is given to the production of n-type ýtc-films with optical gaps of 2.3 eV and dark conductivity's of 6.5 Scm-1

Integration of Surfactant-Free Silicon Nanocrystal in Hybrid Solar Cells

2012 ◽  
Vol 51 ◽  
pp. 10NE25 ◽  
Author(s):  
Vladimir Svrcek ◽  
Davide Mariotti ◽  
Toshimi Yamanari ◽  
Koiji Matsubara ◽  
Michio Kondo
Keyword(s):  
Solar Cells ◽  
Hybrid Solar Cells ◽  
Silicon Nanocrystal ◽  
Free Silicon

Investigation into the optical characteristics of the top-illuminated organic solar cells with graphene electrode

2014 ◽  
Vol 61 (11) ◽  
pp. 943-953 ◽  
Author(s):  
Yongbing Long ◽  
Bowen Li ◽  
Yuanxing Li ◽  
Wenhao Zheng ◽  
Qiwen Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Optical Characteristics ◽  
Graphene Electrode
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