Novel Wide-Band-Gap Ag(In1-xGax)Se2 Thin Film Solar Cells

2005 ◽  
Vol 865 ◽  
Author(s):  
Tokio Nakada ◽  
Keiichiro Yamada ◽  
Ryota Arai ◽  
Hiroki Ishizaki ◽  
Naoomi Yamada
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Thin Film Solar Cell ◽  
High Efficiency ◽  
Wide Band ◽  
Soda Lime ◽  
Soda Lime Glass ◽  
Wide Band Gap ◽  
Area Efficiency ◽  
Glass Substrates

AbstractAg(In1-xGax)Se2 thin films have been deposited on Mo-coated soda-lime glass substrates by the three-stage process using a molecular beam epitaxy (MBE) system. We found a remarkable decrease in the substrate temperature during the 2nd stage in which the film composition changes to a Ag excess. A single phase chalcopyrite AIGS thin film with a slightly Ag poor composition was obtained by using the temperature monitoring composition method. The cell performance of the AIGS thin film solar cell was found to strongly depend on the Ga/(In+Ga) and Ag/(In+Ga) atomic ratios.A high efficiency wide-gap (Eg=1.7eV) Ag(In0.2Ga0.8)Se2 thin film solar cell with a total-area efficiency of 9.3% (10.2% active area efficiency), Voc = 949mV, Jsc = 17.0 mA/cm2, FF = 0.577, and total area = 0.42 cm2 was achieved. The junction formation mechanism of AIGS devices is discussed based on electron beam induced current (EBIC) and scanning capacitance microscopy (SCM) analyses.

Growth of Large Grain Polycrystalline Silicon Thin Film on Soda-lime Glass at Low Temperature for Solar Cell Applications

2011 ◽  
Vol 1321 ◽  
Author(s):  
K. Wang ◽  
K. H. Wong
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Low Temperature ◽  
Thin Film Solar Cell ◽  
Seed Layer ◽  
Polycrystalline Silicon ◽  
Soda Lime ◽  
Absorber Layer ◽  
Soda Lime Glass ◽  
Si Thin Film

ABSTRACTHigh quality polycrystalline silicon (poly-Si) thin film solar cell was successfully fabricated on soda-lime glass substrates by electron beam (Ebeam) evaporation at low processing temperature. The initial poly-Si seed layer (p+-type 0.5 μm thick) was grown via the aluminum induced crystallization (AIC) method at 450 °C. Prominent interdiffusion and Si crystallization have been observed. X-ray diffraction (XRD) shows that (111) is the dominating crystalline orientation. Post annealing at 450 °C for six hours has produced densely packed Si grains with dimension of more than 10 μm in the plane of the film. Non-destructive Raman spectroscopy reveals the remarkable crystalline improvement for samples after thermal treatment. After removing the top diffused Al by chemical means, an absorber layer (p-type) of 0.9 μm thick was subsequently deposited onto the seed layer by Ebeam evaporation at 500 °C. Transmission electron microscopy (TEM) confirmed good homo-epitaxial growth. Without breaking the high vacuum, an n-type amorphous Si (a-Si) layer (0.7 μm thick) was coated onto the absorber layer to form p-n junction. The corresponding I-V characteristics suggest that our low temperature processing technique is applicable for production of poly-Si thin film solar cell on low cost substrates.

CdZnTe for a wide band gap all thin film solar cell

Solar Cells ◽  
1987 ◽  
Vol 21 (1-4) ◽  
pp. 454
Author(s):  
Kenneth A. Hay ◽  
Kenneth R. Zanio
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Band Gap ◽  
Thin Film Solar Cell ◽  
Wide Band ◽  
Wide Band Gap

On the efficiency of perovskite solar cells with a back reflector: effect of a hole transport material

2021 ◽  
Author(s):  
F. Bonnín-Ripoll ◽  
Ya. B. Martynov ◽  
R. G. Nazmitdinov ◽  
G. Cardona ◽  
R. Pujol-Nadal
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Thin Film Solar Cell ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Optimal Thickness ◽  
Back Reflector

A thorough optical + electrical + Lambertian scattering analysis determines the optimal thickness of a perovskite thin-film solar cell revealing its high efficiency with inorganic HTMs.

A Novel Metal Precursor Structure for Electrodepositing Ultrathin CIGSe Thin-Film Solar Cell with High Efficiency

2020 ◽  
Vol 12 (21) ◽  
pp. 24403-24410
Author(s):  
Qing Gao ◽  
Jianping Ao ◽  
Jinlian Bi ◽  
Liyong Yao ◽  
Zhaojing Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Thin Film Solar Cell ◽  
High Efficiency ◽  
Metal Precursor ◽  
Precursor Structure

Design guideline of high efficiency crystalline Si thin film solar cell with nanohole array textured surface

2011 ◽  
Vol 109 (8) ◽  
pp. 084306 ◽  
Author(s):  
Fei Wang ◽  
Hongyu Yu ◽  
Junshuai Li ◽  
Shemein Wong ◽  
Xiao Wei Sun ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Thin Film Solar Cell ◽  
High Efficiency ◽  
Textured Surface ◽  
Nanohole Array ◽  
Design Guideline ◽  
Si Thin Film

Effect of aluminum thickness and etching time of aluminum induced texturing process on soda lime glass substrates for thin solar cell applications

2015 ◽  
Vol 12 (9-11) ◽  
pp. 1201-1205 ◽  
Author(s):  
Mustafa Ünal ◽  
Hisham Nasser ◽  
Mete Günöven ◽  
İlkay Sökmen ◽  
Aydın Tankut ◽  
...  
Keyword(s):  
Solar Cell ◽  
Soda Lime ◽  
Etching Time ◽  
Soda Lime Glass ◽  
Glass Substrates
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