Thermal ideality factor of hydrogenated amorphous siliconp-i-nsolar cells
نویسندگان
چکیده
منابع مشابه
Thermal expansion coefficient of hydrogenated amorphous carbon
The coefficient of thermal expansion ~CTE! of hydrogenated amorphous carbon (a-C:H) was investigated as a function of the concentration of sp hybridization. The CTE, determined using the thermally induced bending technique, depends on the concentration of sp bonded carbon, increasing to the value of graphite as the sp concentration approaches 100%. By using a combination of the thermally induce...
متن کاملThermal Desorption Spectroscopy of Hydrogen from Amorphous Hydrogenated Silicon
T h e r m a l desorption spectroscopy (TDS) based on the mass spectroscopy of thermal ly evolved hydrogen is used for desorption analysis of amorphous hydrogenated silicon (a-Si:H). Two series of glow discharge chemical vapour deposited a-Si:H were investigated by the T D S method . Cons tan t t e m p e r a t u r e growth ra te enabled to determine t empera tu re regions of hydrogen evolution a...
متن کاملHigh thermal conductivity of a hydrogenated amorphous silicon film.
We measured the thermal conductivity kappa of an 80 microm thick hydrogenated amorphous silicon film prepared by hot-wire chemical-vapor deposition with the 3omega (80-300 K) and the time-domain thermo-reflectance (300 K) methods. The kappa is higher than any of the previous temperature dependent measurements and shows a strong phonon mean free path dependence. We also applied a Kubo based theo...
متن کاملLight-induced Defects in Thermal Annealed Hydrogenated Amorphous Silicon
The metastable defects of a-Si:H samples annealed at temperatures in the 300-550°C range have been studied by photothermal deflection spectroscopy (PDS). The light-soaked samples show an increase in optical absorption in the 0.8 to 1.5 eV range. The metastable defect density decreases when the annealing temperature increases, while the defect density increases. This decrease in the metastable d...
متن کاملPhoto-Oxidation of Hydrogenated Amorphous Silicon Solar Cells
From different sources of carbon , propane have been chosen to get a wider band gap amorphous silicon alloy . After analyzing the conductivity and optical gap variation with the doping ratio , the best were used to fabricate 5x5 cm solar cells . Those cells are connected to form 75 x 75 cm panels. Photo-oxidation were carried out using different sources as an accelerated method to study the met...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2011
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.3662924