Elektrische und optische Eigenschaften von Cu₂S‐Aufdampfschichten

Pressure-induced changes of the structure and properties of monoclinic α -chalcocite Cu2S

“…(a) Absorption spectra of Cu 2 S at different pressures on pressure release from 9.5 GPa to ambient pressure. The energy dependence of (hνα) 2 and the extrapolation the linear portion intercepting the energy axis are shown for (b) α-chalcocite at 1 atm, (c) HP1 at 3.9(2) GPa, and (d) HP2 at 9.5 (5) first pressure-induced structural phase transition takes place according to our high-pressure single-crystal x-ray diffraction experiments. Above 3 GPa the electrical resistance gradually increases as a function of pressure.…”

“…Monoclinic α-chalcocite [1], Cu 2 S, is one of the dominant mineral phases in copper ores and has been investigated extensively for the last 100 years due to its outstanding physical properties, such as ion conductivity at elevated temperatures [2], fast switchable phase transitions [3], and semiconductivity [2]. Its optical band gap of about 1.2 eV [4][5][6] makes αchalcocite, in principle, suitable for applications as an absorber material in solar cells. The ubiquity of copper sulfide together with its low cost and nontoxicity made Cu 2 S-based solar cells one of the most intensively studied systems [7].…”

Optical and Electrical Properties of Thin Films of CuS Nanodisks Ensembles Annealed in a Vacuum and Their Photocatalytic Activity

“…Several techniques have been utilized in order to obtain Cu S thin films; the more common are solvothermal method [12], atomic layer deposition [19], hydrothermal [20], photo chemical deposition [21], sonochemical [22], microwave [23], solid state reaction [24,25], metalorganic deposition [26], vacuum evaporation [19,27], microemulsion [28], spray pyrolysis [29][30][31], polyol route [32], and chemical bath deposition (CBD) [3,4,33,34]. The CBD is a cheap and powerful technique for preparing thin film materials at atmospheric pressure and low temperature (less than 95 ∘ C).…”

Fabrication of transparent conducting films composed of In3+ doped CuS and their application in flexible electroluminescent devices

“…13 CuS films are also used as counter electrode (CE) for dye and quantum dot sensitized solar cell. 16 Cu x S particles of various sizes and shapes such as hollow spheres, 17 rods, 18 tubes, 19 flowers, 20 plates, 21 disks, 22 and ribbons 22 were successfully deposited on various substrates by various techniques such as atomic layer deposition (ALD), 23 chemical vapor deposition (CVD), 24 metal organic deposition (MOD), 25 successive ionic layer adsorption and reaction (SILAR), 26 spray pyrolysis, 27 chemical bath deposition (CBD), 1,2,28-30 and hydrothermal/solvothermal method. 16 Cu x S particles of various sizes and shapes such as hollow spheres, 17 rods, 18 tubes, 19 flowers, 20 plates, 21 disks, 22 and ribbons 22 were successfully deposited on various substrates by various techniques such as atomic layer deposition (ALD), 23 chemical vapor deposition (CVD), 24 metal organic deposition (MOD), 25 successive ionic layer adsorption and reaction (SILAR), 26 spray pyrolysis, 27 chemical bath deposition (CBD), 1,2,28-30 and hydrothermal/solvothermal method.…”

“…14,15 Cu x S exists in five stable phases at room temperature, namely chalcocite (Cu 2 S), djurleite (Cu 1.96 S), digenite (Cu 1.85 S), anilte (Cu 1.75 S) and covellite (CuS). 16 Cu x S particles of various sizes and shapes such as hollow spheres, 17 rods, 18 tubes, 19 flowers, 20 plates, 21 disks, 22 and ribbons 22 were successfully deposited on various substrates by various techniques such as atomic layer deposition (ALD), 23 chemical vapor deposition (CVD), 24 metal organic deposition (MOD), 25 successive ionic layer adsorption and reaction (SILAR), 26 spray pyrolysis, 27 chemical bath deposition (CBD), 1,2,[28][29][30] and hydrothermal/ solvothermal methods. 31 Among these techniques, the chemical bath deposition technique is simple and cost effective, using which doping can be done easily and large area can be coated, and it does not require sophisticated instruments.…”