P-Type Doping in Heteroepitaxial CdTe and Lift-Off Technique for Making Thin Film Single Crystal CdTe Solar Cells

1991 ◽  
pp. 1411-1412 ◽  
Author(s):  
A. N. Tiwari ◽  
S. Blunier ◽  
K. Kessler ◽  
H. Zogg
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Single Crystal ◽  
Cdte Solar Cells ◽  
Lift Off ◽  
P Type

First-principles Study of Back Contact Effects on CdTe Thin Film Solar Cells

2010 ◽  
Vol 1268 ◽  
Author(s):  
Mao-Hua Du
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
First Principles ◽  
Cell Performance ◽  
Thin Film Solar Cells ◽  
Back Contact ◽  
Cdte Thin Film ◽  
Solar Cell Performance ◽  
Cdte Solar Cells ◽  
P Type

AbstractForming a chemically stable low-resistance back contact for CdTe thin film solar cells is critically important to the cell performance. This paper reports theoretical study of the effects of the back contact material, Sb2Te3, on the performance of the CdTe solar cells. First-principles calculations show that Sb impurities in p-type CdTe are donors and can diffuse with low diffusion barrier. There properties are clearly detrimental to the solar cell performance. The Sb segregation into the grain boundaries may be required to explain the good efficiencies for the CdTe solar cells with Sb2Te3 back contacts.

Importance of electron current in p-type CdTe in CdS/CdTe thin film solar cells at forward bias

2001 ◽  
Vol 668 ◽  
Author(s):  
Jutta Beier ◽  
Marc Köntges ◽  
Peter Nollet ◽  
Stefaan Degrave ◽  
Marc Burgelman
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Minority Carrier ◽  
Voltage Dependence ◽  
Forward Bias ◽  
Back Contact ◽  
Cdte Solar Cells ◽  
Dependent Behavior ◽  
Measurement Results ◽  
P Type

ABSTRACTIn previous work [1,2], we modeled the cross-over of the I-V curves of thin film CdS/CdTe solar cells in terms of an electron (minority carrier) current in the vicinity of the back contact. In this work, we focus on the necessary extension of this analytical model based on a series of measurement results. Especially the wavelength and voltage dependence of the current at forward bias is illustrated in these measurements. The various possible causes for this kind of behavior are discussed and modeled. The extensions to the previous model, needed to describe the voltage and wavelength dependent behavior of I-V curves of real CdTe/CdS solar cells, are proposed.

Cu K-edge EXAFS Studies Of CdCl2 Effects On CdTe Solar Cells

2005 ◽  
Vol 865 ◽  
Author(s):  
Xiangxin Liu ◽  
Alvin D. Compaan ◽  
Jeff Terry
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Grain Boundary ◽  
Cdte Thin Film ◽  
X Ray ◽  
Cdte Solar Cells ◽  
Cdte Films ◽  
Chloride Treatment ◽  
P Type ◽  
X Ray Absorption

AbstractThe highest performance CdS/CdTe thin film solar cells are generally completed with a Cucontaining back contact. The copper appears to be critical for achieving heavy p-type doping of the CdTe at the contact to permit the formation of a low resistance contact. In previous extended x-ray absorption fine structure (EXAFS) work we have inferred that most of the Cu in CdTe films resides as Cu2O at the boundaries of CdTe grains in films that have received a chloride treatment in the presence of oxygen, a critical step needed to improve the performance of all CdTe thin-film cells. This has suggested a mechanism for grain boundary passivation in thinfilm CdTe solar cells. We believe most of the diffused Cu decorates grain boundaries as oxides, consistent with the low doping densities typically observed in CdTe solar cells. The significance for grain boundary passivation will be discussed. We also find evidence that the grain-boundary Cu2O in CdCl2 treated CdTe films is unstable and tends to transform to CuO under some stress conditions.

Epitaxial lift-off CdTe/MgCdTe double heterostructures for thin-film and flexible solar cells applications

2021 ◽  
Vol 118 (18) ◽  
pp. 181101
Author(s):  
Jia Ding ◽  
Cheng-Ying Tsai ◽  
Zheng Ju ◽  
Yong-Hang Zhang
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Double Heterostructures ◽  
Lift Off

Organic solar cells employing magnetron sputtered p-type nickel oxide thin film as the anode buffer layer

2010 ◽  
Vol 94 (12) ◽  
pp. 2332-2336 ◽  
Author(s):  
Sun-Young Park ◽  
Hye-Ri Kim ◽  
Yong-Jin Kang ◽  
Dong-Ho Kim ◽  
Jae-Wook Kang
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Nickel Oxide ◽  
Buffer Layer ◽  
Organic Solar Cells ◽  
Oxide Thin Film ◽  
Anode Buffer Layer ◽  
P Type ◽  
Type Nickel ◽  
Nickel Oxide Thin Film

Multilayer Broadband Antireflective Coatings for More Efficient Thin Film CdTe Solar Cells

2014 ◽  
Vol 4 (1) ◽  
pp. 452-456 ◽  
Author(s):  
P. M. Kaminski ◽  
F. Lisco ◽  
J. M. Walls
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Antireflective Coatings ◽  
Cdte Solar Cells
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