Laser induced optical bleaching in Ge12Sb25S63 chalcogenide thin film

2015 ◽  
Author(s):  
Ramakanta Naik ◽  
S. Jena ◽  
N. K. Sahoo
2010 ◽  
Vol 13 (9) ◽  
pp. H313 ◽  
Author(s):  
A. L. Salas-Villasenor ◽  
I. Mejia ◽  
J. Hovarth ◽  
H. N. Alshareef ◽  
D. K. Cha ◽  
...  

2013 ◽  
Vol 1558 ◽  
Author(s):  
Nicolas Gaillard ◽  
Dixit Prasher ◽  
Jess Kaneshiro ◽  
Stewart Mallory ◽  
Marina Chong

ABSTRACTIn the present communication, we report our efforts to integrate chalcogenide-based photoelectrochemical (PEC) materials into a standalone device capable of water-splitting using sunlight as the only source of energy. More specifically, the PEC performances of copper gallium diselenide are presented. First, a brief introduction to the material microstructural characteristics is presented. Then, the PEC properties are discussed, including incident-photonto-current efficiency (>60% in the visible), Faradaic efficiency (uncatalyzed, 86%) and durability (400 hours). Finally, we report the solar-to-hydrogen benchmark efficiency (3.7%) of a device made of a CuGaSe2 photocathode and a-Si solar cells measured in a 2-electrode configuration using a RuO2 counter electrode.


2014 ◽  
pp. 145-215 ◽  
Author(s):  
M. Paire ◽  
S. Delbos ◽  
J. Vidal ◽  
N. Naghavi ◽  
J.F. Guillemoles

2020 ◽  
Vol 20 (6) ◽  
pp. 3909-3912 ◽  
Author(s):  
Muhunthan Nadarajah ◽  
Kuldeep Singh Gour ◽  
Vidya Nand Singh

In this study, we present a process to deposit cadmium sulfide (CdS) thin film on glass substrate using in-house made CdS sputter target deposited by RF (radio frequency) magnetron sputtering. The bandgap of CdS film was about 2.4 eV estimated using tauc plot. Structural analysis was done using XRD and highest peak is at (101) and two other small peaks at (100) and (110) confirm CdS phase. Raman analysis was done for further confirmation of phases present in CdS film where peaks at 299.97 cm−1 and 599.8 cm−1 showed phase pure CdS film. The sputtering method used for CdS thin film preparation is an industrially viable technique and can be used for in line mass production.


2020 ◽  
pp. 2151002
Author(s):  
Cihan Kuru

Photoelectrochemical (PEC) water splitting holds a great promise for clean and sustainable hydrogen production. In this study, the PEC performance of Co–Mo–Se ternary chalcogenide thin film coated Si photocathodes is investigated. The Co–Mo–Se films with various Co/Mo atomic ratios were prepared by thermal selenization of sputter deposited Co–Mo alloy films. Among the photocathodes, the Co–Mo–Se (3:10)/[Formula: see text]-Si surpasses the PEC performance of the MoSe2/[Formula: see text]-Si with an onset potential of +124 mV vs. reversible hydrogen electrode (RHE), a photocurrent density of −22.68 mA/cm2 at zero overpotential and good stability over 6 h period of test. The superior performance of the Co–Mo–Se (3:10)/[Formula: see text]-Si is ascribed to the high catalytic activity of the film in hydrogen evolution reaction (HER) and efficient collection of photogenerated charge carriers. Such ternary chalcogenide thin films offer exciting opportunities for many applications in which the physicochemical properties can be tuned by changing the relative amount of the solute atoms.


2019 ◽  
Vol 7 (36) ◽  
pp. 11068-11084 ◽  
Author(s):  
Yuhao Liu ◽  
Chao Chen ◽  
Ying Zhou ◽  
Rokas Kondrotas ◽  
Jiang Tang

Butyldithiocarbamate acid can dissolve a series of metal oxides; thus, it enables the fabrication of metal chalcogenide thin-film solar cells.


1993 ◽  
Vol 32 (Part 1, No. 1B) ◽  
pp. 564-569 ◽  
Author(s):  
Kazuya Nakayama ◽  
Toshiya Kitagawa ◽  
Masashi Ohmura ◽  
Masakuni Suzuki

2016 ◽  
Vol 362 (1) ◽  
pp. 60-64 ◽  
Author(s):  
Chaitali S. Bagade ◽  
Vishvanath B. Ghanwat ◽  
Suvarta D. Kharade ◽  
Kishorkumar V. Khot ◽  
Rohini R. Kharade ◽  
...  

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