Effect of the chemical composition of co-sputtered Zn(O,S) buffer layers on Cu(In,Ga)Se2 solar cell performance

2014 ◽  
Vol 212 (2) ◽  
pp. 282-290 ◽  
Author(s):  
M. Buffière ◽  
S. Harel ◽  
C. Guillot-Deudon ◽  
L. Arzel ◽  
N. Barreau ◽  
...  
Keyword(s):  
Solar Cell ◽  
Chemical Composition ◽  
Cell Performance ◽  
Buffer Layers ◽  
Solar Cell Performance

Chemical Composition Dependence of Cu2ZnSnS4 Absorbers Fabricated by Sulfurization of Thermal Evaporated Metal Precursors and Solar Cell Performance

2015 ◽  
Vol 1738 ◽  
Author(s):  
Liyuan Zhang ◽  
Sreejith Karthikeyan ◽  
Mandip J. Sibakoti ◽  
Stephen A. Campbell
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Chemical Composition ◽  
Conversion Efficiency ◽  
Small Deviation ◽  
Short Circuit ◽  
Cell Performance ◽  
Czts Thin Film ◽  
Solar Cell Performance

ABSTRACTWe investigate the synthesis of kesterite Cu2ZnSnS4 (CZTS) thin films using thermal evaporation from copper, zinc and tin pellets and post-annealing in a sulfur atmosphere. The effects of chemical composition were studied both on the absorber layer properties and on the final solar cell performance. It is confirmed that CZTS thin film chemical composition affects the carrier concentration profile, which then influences the solar cell properties. Solar cells using a CZTS thin film with composition ratio Cu/(Zn+Sn) = 0.87, and Zn/Sn = 1.24 exhibited an open-circuit voltage of 483 mV, a short-circuit current of 14.54 mA/cm2, a fill factor of 37.66 % and a conversion efficiency of 2.64 %. Only a small deviation from the optimal chemical composition can drop device performance to a lower level, which confirms that the CZTS solar cells with high conversion efficiency existed in a relatively narrow composition region.

Enhanced inverted organic solar cell performance by post-treatments of solution-processed ZnO buffer layers

RSC Advances ◽  
2014 ◽  
Vol 4 (13) ◽  
pp. 6646 ◽  
Author(s):  
Zhenhua Lin ◽  
Jingjing Chang ◽  
Changyun Jiang ◽  
Jie Zhang ◽  
Jishan Wu ◽  
...  
Keyword(s):  
Solar Cell ◽  
Organic Solar Cell ◽  
Cell Performance ◽  
Buffer Layers ◽  
Solution Processed ◽  
Solar Cell Performance

scholarly journals The roles of ZnTe buffer layers on CdTe solar cell performance

2016 ◽  
Vol 147 ◽  
pp. 203-210 ◽  
Author(s):  
Colin A. Wolden ◽  
Ali Abbas ◽  
Jiaojiao Li ◽  
David R. Diercks ◽  
Daniel M. Meysing ◽  
...  
Keyword(s):  
Solar Cell ◽  
Cell Performance ◽  
Buffer Layers ◽  
Solar Cell Performance ◽  
Cdte Solar Cell

How do Buffer Layers Affect Solar Cell Performance and Solar Cell Stability?

2001 ◽  
Vol 668 ◽  
Author(s):  
Bolko von Roedern
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Carrier Transport ◽  
Open Circuit ◽  
Operating Conditions ◽  
Cell Performance ◽  
Buffer Layers ◽  
Limiting Current ◽  
Solar Cell Performance ◽  
A Cell

ABSTRACTBuffer layers are commonly used in the optimization of thin-film solar cells. For CuInSe2-and CdTe-based solar cells, multilayer transparent conductors (TCOs, e.g., ZnO or SnO2) are generally used in conjunction with a CdS heterojunction layer. Optimum cell performance is usually found when the TCO layer in contact with the CdS is very resistive or almost insulating. In addition to affecting the open-circuit voltage of a cell, it is commonly reported that buffer layers affect stress-induced degradation and transient phenomena in CdTe- and CuInSe2-based solar cells. In amorphous silicon solar cells, light-induced degradation has a recoverable and a nonrecoverable component too, and the details of the mechanism may depend on the p-type contact layer. Because of the similarity of transients and degradation in dissimilar material systems, it is suggested that degradation and recovery are driven by carriers rather than by diffusing atomic species. The question that must be addressed is why, not how, species diffuse and atomic configurations relax differently in the presence of excess carriers. In this paper, I suggest that the operating conditions of a cell can change the carrier transport properties. Often, excess carriers may enhance the conductance in localized regions (“filaments”) and buffer layers; limiting current flow into such filaments may therefore control the rate and amount of degradation (or recovery).

Correlating titania morphology and chemical composition with dye-sensitized solar cell performance

2011 ◽  
Vol 22 (24) ◽  
pp. 245402 ◽  
Author(s):  
Alexander C Santulli ◽  
Christopher Koenigsmann ◽  
Amanda L Tiano ◽  
Donald DeRosa ◽  
Stanislaus S Wong
Keyword(s):  
Solar Cell ◽  
Chemical Composition ◽  
Cell Performance ◽  
Dye Sensitized Solar Cell ◽  
Solar Cell Performance ◽  
Dye Sensitized

Experimental and Theoretical Comparable Study of Pure and Zinc Porphyrin Surface Modified ZnO Nanorod Arrays for Hybrid Solar Cell Applications

2020 ◽  
pp. 114-119
Keyword(s):  
Solar Cell ◽  
Electrochemical Impedance ◽  
Hybrid Solar Cell ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
Solar Cell Efficiency ◽  
Cell Efficiency ◽  
Annealing Effects ◽  
Vertically Aligned ◽  
Surface Modified

Experimental and theoretical study Porphyrin-grafted ZnO nanowire arrays were investigated for organic/inorganic hybrid solar cell applications. Two types of porphyrin – Tetra (4-carboxyphenyle) TCPP and meso-Tetraphenylporphine (Zinc-TPP)were used to modify the nanowire surfaces. The vertically aligned nanowires with porphyrin modifications were embedded in graphene-enriched poly (3-hexylthiophene) [G-P3HT] for p-n junction nanowire solar cells. Surface grafting of ZnO nanowires was found to improve the solar cell efficiency. There are different effect for the two types of porphyrin as results of Zn existing. Annealing effects on the solar cell performance were investigated by heating the devices up to 225 °C in air. It was found that the cell performance was significantly degraded after annealing. The degradation was attributed to the polymer structural change at high temperature as evidenced by electrochemical impedance spectroscopy measurements.

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