CdTe layer
Optoelectronic devices based on graded bandgap structures utilising electroplated semiconductors
... the CdTe layer are ...Cd-rich CdTe surfaces are associated with defect levels at ...Te-rich CdTe surfaces are associated with defect levels at ...that CdTe with n-type electrical ...
341
Fabrication of cadmium sulfide and cadmium telluride solar cells and their characterisations
... film CdTe based solar cells have the potential for high efficiency and have been investigated for 40 years due to their variations in flexibility in manufacturing technology, rapid deposition, and an excellent ...
23
Optimisation of CdTe electrodeposition voltage for development of CdS/CdTe solar cells
... the layer formed is a mixture of CdTe and ...of CdTe layer is expected beyond 1500 mV cathodic voltage as can be seen from the Figure ...from CdTe and then Te from the cathode ...
18
Electrodeposition of CdTe thin films using nitrate precursor for applications in solar cells
... of CdTe layer which in turn leads to enhancement in crystallite or grain size of the CdTe ...the layer, ionic concentration and current density can ...as-deposited CdTe layers grown at ...
24
Unravelling complex nature of CdS/CdTe based thin film solar cells
... the CdTe material can easily exist in both n- and p-type electrical conduction, the situation is very ...the CdTe layer after post-growth treatment remains as a p-layer, then the simple p–n ...
21
Optimization of High-Efficiency CdS/CdTe Thin Film Solar Cell Using Step Doping Grading and Thickness of the Absorption Layer
... In addition to optimizing the doping levels, various structures by using step doping grading of the CdTe layer were also investigated in order to achieve best device performance. Therefore, the both doping ...
6
Electroplating of CdTe thin films from cadmium sulphate precursor and comparison of layers grown by 3 electrode and 2 electrode systems
... During the past three decades, CdS/CdTe solar cell research was carried out assuming the CdTe layer in the device as a p-type material. Therefore, all experimental results were interpreted based on a ...
18
A High Efficiency Ultrathin CdTe Solar Cell for Nano Area Applications
... the CdTe layer ...the CdTe absorber layer thickness is an attractive ...window layer of CdS/CdTe solar cells is CdS ...for CdTe solar ...
9
15 3% efficient graded bandgap solar cells fabricated using electroplated CdS and CdTe thin films
... n-CdTe layer was used mainly due to our previous experimental observations reported in reference ...n-type CdTe rather than Te-rich p-type CdTe as the main absorbing ...nm) layer was ...
11
The effect on CdS/CdTe solar cell conversion efficiency of the presence of fluorine in the usual CdCl2 treatment of CdTe
... these CdTe layers was confirmed using PEC measurement as mentioned earlier and it is believed that the presence of F in these materials will enhance the n-type conductivity ...etching CdTe surfaces prior to ...
11
Facile synthesis of folate conjugated magnetic/fluorescent bifunctional microspheres
... is red and the NPs are well dispersed in the aqueous so- lution under both normal light and UV irradiation. When a magnetic field is placed near the solution, the as-prepared nanoparticles are attracted and accumu- lated ...
8
Microwave assisted synthesis of water dispersed CdTe/CdSe core/shell type II quantum dots
... as-received CdTe/CdSe ...as-prepared CdTe/CdSe QD solution caused a decrease of the PL ...as-prepared CdTe/CdSe QDs were diluted to the same concentration with the corresponding CdTe QDs and ...
7
Bi Assisted CdTe/CdS Hierarchical Nanostructure Growth for Photoconductive Applications
... CdS powder source was placed at the center of the alu- mina tube, and the substrates with Au catalyst film were placed at the downstream position of the source mater- ial. After evacuating the tube (base pressure of 10 ...
7
Interfacial and Stability Studies of Photocathodes for Hydrogen Evolution
... The mechanical adhesion is not robust between a Pt thin film and Si. An interfacial adhesion layer is consequently normally required when Pt is deposited by physical vapor deposition onto Si substrates. For a Pt ...
99
Effects of CdCl2 treatment on deep levels in CdTe and their implications on thin film solar cells; A comprehensive photoluminescence study
... film CdTe layers, together with that of melt-grown bulk CdTe, PL studies were also carried out on CdTe wafers purchased from industry (University ...for CdTe wafers purchased from Eagle ...
21
Spontaneous Spin Polarization of Electrons by Diluted Magnetic Heterostructures
... the barrier height of CdTe is 0.32 eV. In the numerical calculations, we choose the system size to be: well width, b = 25 Å, barrier thickness, a = 20 Å, and the barrier height, V = 320 meV. The real part of the ...
8
Factors affecting electroplated semiconductor material properties: The case study of deposition temperature on cadmium telluride
... thin-film layer deposition, the 3 × 2 cm 2 strips were cut into two halves of 3 × 1 cm 2 ...the CdTe layers as it used in the CdTe-based photovoltaic device-ready ...
16
Cytotoxicity of CdTe quantum dots in human umbilical vein endothelial cells: the involvement of cellular uptake and induction of pro-apoptotic endoplasmic reticulum stress
... in CdTe QDs-mediated mitochondrial-dependent apoptosis in human umbilical vein endothelial cells ...of CdTe QDs with HUVECs and their potential impairment of other organelles like endoplasmic reticulum (ER) ...
14
Improvement of composition of CdTe thin films during heat treatment in the presence of CdCl2
... crystal CdTe wafers [18, 19]. When the wafer is etched so that the surface is rich in Te, the defect levels in the mid- gap and the upper half of the bandgap are more dominant. The metal contacts fabricated on ...
11
DIMENSIONAL EFFECT ON OPTICAL PROPERTIES OF CADMIUM ZINC TELLURIDE THIN FILMS
... and CdTe targets are placed in the target holders of the RF sputtering ...Both CdTe and ZnTe targets are sputtered sequentially and a stack layer of ZnTe/CdTe is thus ...stack layer is ...
6