Characterization of radiation tolerance in doping superlattice solar cells

2013 ◽  
Author(s):  
Michael A. Slocum ◽  
David V. Forbes ◽  
Mihir H. Bohra ◽  
Seth M. Hubbard
Keyword(s):  
Solar Cells ◽  
Radiation Tolerance ◽  
In Doping

Effect Of μ-Doped Compensated Material on Stability of a-Si:H Solar Cells

1996 ◽  
Vol 420 ◽  
Author(s):  
D. Caputo ◽  
G. De Cesare ◽  
F. Palma ◽  
M. Tucci
Keyword(s):  
Solar Cells ◽  
Doping Concentration ◽  
Dark Conductivity ◽  
Degradation Behavior ◽  
Simultaneous Presence ◽  
Deposition Parameters ◽  
In Doping ◽  
The Difference

AbstractIn this paper we focus our attention on compensated materials with μ-doping concentration in order to obtain a stable intrinsic layer with initial high photoconductivity suitable for p-i-n solar cells. Films were grown from a mixture of undiluted silane, hydrogen diluted phosphine and hydrogen diluted diborane. Values of dark conductivity around 10-11 Ω-1cm-1 and photosensitivity ratio under AM 1.5 of 6 orders of magnitude have been obtained for phosphine/diborane ratio around 102. The difference between the two dopant concentrations is in agreement with the difference in doping efficiency of the two gases found in the characterization of single μ-doped films.We compared the degradation behavior of compensated and intrinsic materials with the same initial dark and light conductivity. After about 20 h the photoconductivity of the compensated and the intrinsic material decreased of 33% and 70%, respectively. The space of investigable deposition parameters has been limited by the stress induced by the simultaneous presence of phosphine and diborane which leads to a macroscopic, periodic and regular damage of the film.

scholarly journals Synthesis and Theoretical Investigation Using DFT of 2,3-Diphenylquinoxaline Derivatives for Electronic and Photovoltaic Effects

2021 ◽  
Author(s):  
Dorota Zając ◽  
Dariusz Przybylski ◽  
Jadwiga Sołoducho
Keyword(s):  
Solar Cells ◽  
Acrylic Acid ◽  
Organic Semiconductors ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Low Cost ◽  
Design Synthesis ◽  
Semiconducting Properties ◽  
Homo Lumo

AbstractDeveloping effective and low‐cost organic semiconductors is an opportunity for the development of organic solar cells (OPV). Herein, we report the molecular design, synthesis and characterization of two molecules with D–A–D–A configuration: 2-cyano-3-(5-(8-(3,4-ethylenodioxythiophen-5-yl)-2,3-diphenylquinoxalin-5-yl)thiophen-2-yl)acrylic acid (6) and 2-cyano-3-(5-(2,3-diphenyl-8-(thiophen-2-yl)quinoxalin-5-yl)thiophen-2-yl)acrylic acid (7). Moreover, we investigated the structural, theoretical and optical properties. The distribution of HOMO/LUMO orbitals and the values of the ionization potential indicate good semiconducting properties of the compounds and that they can be a bipolar material. Also, the optical study show good absorption in visible light (λabs 380–550 nm). We investigate the theoretical optoelectronic properties of obtained compounds as potential materials for solar cells.

Temperature coefficient characterization of CIGSSe solar cells with layer modifications

2021 ◽  
Vol 225 ◽  
pp. 111059
Author(s):  
Hamsa Ahmed ◽  
Mohamed Elshabasi ◽  
Jörg Ohland ◽  
Marko Stölzel ◽  
Alfons Weber ◽  
...  
Keyword(s):  
Solar Cells ◽  
Temperature Coefficient
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