Skip to main content

Zinc Sulfide Sputtering Targets and Applications

Zinc sulfide is an inorganic compound with the chemical formula of ZnS. This is the main form of zinc found in nature, where it mainly occurs as the mineral sphalerite.
Zinc Sulfide (ZnS) Sputtering Targets (Size:1'' ,Thickness:0.125'' , Purity: 99.99%) is an important wide band gap semiconductor material with extensive potential applications, such as flat-panel displays, sensor, light-emitting diodes, photodetectors and solar cells. In the important application of photovoltaics, zinc sulfide sputtering targets can be used as buffer layer material of CuInGaSe2 (CIGS), Cu2ZnSnS4 (CZTS) thin-film solar cells. Compared to cadmium sulfide used commonly as buffer layer material, zinc sulfide has some advantages which are nontoxic, abundant, cheap, lattice matched with CIGS or CZTS absorber, possessing wide band gap. Zinc sulfide is a direct band gap n type semiconductor. The band gap of zinc sulfide is in the range of 3.2 ~ 3.9 eV, while the band gap of cadmium sulfide is only about 2.45eV. The wide band gap of zinc sulfide enables high energy incident photons to reach the window-absorber junction, enhancing the blue response of the photovoltaic cells and thus contributes to a better cell performance.
The main fabrication methods of zinc sulfide films involve chemical bath depositio, chemical vapor deposition, molecular beam epitaxy, thermal evaporation and RF magnetron sputtering. Among these fabrication methods, magnetron sputtering technique has some advantages such as easier controllability of the deposition parameters, high film growth rate, compatibility with the sputtering depositions of absorber and window layer and thus beneficial to industrial production of solar cells.
Thin film solar cells with high efficiency require thin films fabricated with high quality. Annealing is one method used often to improve film quality. 

Labels:

Comments

Post a Comment

Popular posts from this blog

Molybdenum Trioxide Nanoparticles/Nanopowder and Applications

General Information about Molybdenum Trioxide                                                     Molybdenum trioxide is chemical compound with the formula MoO3. Its chief application is as an oxidation catalyst and as a raw material for the production of molybdenum metal.  Molybdenum Trioxide  is a very light blue powder. Molybdenum Trioxide Nanoparticles/Nanopowder and Their Applications                                                    Like many  nanoparticles/nanopowder , Molybdenum Trioxide nanoparticles/nanopowder are used as catalysts. These catalysis reactions include hydrogenation catalysis and cracking catalysis. Molybdenum Trioxide nanoparticles/  nanopowder are useful for...
Post a Comment
Read more

Bismuth Oxide Sputtering Targets and Applications

Bismuth oxide with the chemical formula of Bi 2 O 3  is one the most important bismuth compounds. Bismuth oxide has been investigated extensively due to its optical and electrical properties such as large energy gap (from 2 to 4 eV), refractive index and high oxygen ion conductivity at high and medium temperatures. These properties make bismuth oxide one of the most perspective candidates for application in optoelectronics, solar cells and solid oxide fuel cells (SOFCs). Bismuth oxide has a few main polymorphic forms that are known as α, β, γ, δ. All polymorphs have different crystal structure and various optical, electrical and mechanical properties. Only two of them, the low temperature monoclinic α-phase and high temperature face-centered cubic δ-phase are stable. The other phases are metastable. Magnetron sputtering is a widespread method because of high deposition rate, dense and highly adhesive films, and possibility of using commercially available large area depositio...
Post a Comment
Read more

Cadmium Sulfide Nanopowder and Its Applications

Cadmium sulfide is the inorganic compound with the formula CdS. Cadmium sulfide is a yellow solid. It occurs in nature with two different crystal structures as the rare minerals greenockite and hawleyite. As a compound that is easy to isolate and purify, cadmium sulfide the principal source of cadmium for all commercial applications. Its vivid yellow color led to its adoption as a pigment for the yellow paint "cadmium yellow" in the 18th century. Cadmium Sulfide Nano Powder, CdS (99.9+%, 20 nm)  shows unique physical, chemical and structural properties from the bulk. The melting point, electronic absorption spectra, band gap energy crystal structure, and other properties of cadmium sulfide nanoparticles are affected by size. Thus, cadmium sulfide on the whole is an attractive system for practicing synthetic chemistry for nanocrystals and for understanding the chemistry, growth history of nanomaterials and also for various technical applications. Colloidal dispersions of ...
Post a Comment
Read more