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Cu2SnSe3 (CTSe) thin films were fabricated by coevaporation on soda-tune glass substrates at the substrate temperature of 300 °C under rations Co Sd supply ratios. From X-ray diffraction ( XRD) analyses, diffraction peaks of CTSe with a cubic sphalerite structure were observed in all CTSe thin films. In addition, SnSe and SnSe2 phases were also detected in Sn-ricb CTSe thin films. On the other bands,...
Anisotropic magnetoresistance (AMR) effect in Pt/YIG system where only Pt contributed to charge transport causes much attentions. Chien regarded that the Pt has been magnetized by the YIG due to magnetic proximity effect (MPE). In contrast, Saitoh proposed a new mechanism entitled as spin Hall magnetoresistance (SMR) to explain the AMR in Pt/YIG. The key of SMR is the spin current generated by SHE...
Transition metal sulfides with small bandgap are attractive for solar cell applications since most transition metals are abundant and many can be deposited in solution. Pyrite FeS2, with a bandgap of 0.95 eV, is one of the most desirable for solar cell applications. The problem with FeS2 is that its bandgap is ∼0.45 eV smaller than the optimum bandgap for maximum efficiency, which should be ∼1.4 eV...
Cu2O is naturally p-type, which has prevented an efficient Cu2O solar cell. N-type doping of Cu2O is demonstrated during electrodeposition of Cu2O by adding a Cl precursor to the aqueous solution. Current-voltage characterization reveals that the resistivity of undoped Cu2O by electrodeposition is ~40 M??-cm, while that of Cl-doped Cu2O is significantly reduced to as low as ~7??-cm. X-ray diffraction...
Inorganic solar cells are traditionally fabricated by vacuum-based semiconductor processing. Although cuprous oxide (Cu2O) can be synthesized by wet-chemical methods, its natural p-type conductivity has prevented an efficient p-n homojunction solar cell. In this paper we report the effect of solution pH on the conduction type (n- or p-type) of Cu2O in electrodeposition. It is found that Cu2O electrodeposited...
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