摘要:
An oxide represented by Formula 1: (Sr2-xAx)(M1-yQy)D2O7+d, Formula 1 wherein A is barium (Ba), M is at least one selected from magnesium (Mg) and calcium (Ca), Q is a Group 13 element, D is at least one selected from silicon (Si) and germanium (Ge), 0≦x≦2.0, 0
摘要:
A visible light sensitive photocatalyst including: a composite including a first metal oxide, a second metal oxide, and a heterojunction therebetween, wherein the first and second metal oxides each include a Group 11 metal, wherein a first bond between metal atoms of the first metal oxide has a length that is smaller than a Van der Waals distance between the metals of the first bond, wherein a second bond between metal atoms of the second metal oxide has a length that is smaller than a Van der Waals distance between the metals of the second bond, and, wherein the composite has a band gap energy of about 1.0 eV to about 2.5 eV.
摘要:
An oxide represented by Formula 1: A2M1−xCxD2O7+δ Formula 1 wherein, in Formula 1, x is in the range of 0.4≦x≦1.0; δ is selected such that the oxide electrically neutral; A is at least one metal selected from an alkaline earth metal; M is an alkaline earth metal that differs from A; C is a transition metal; and D is at least one selected from germanium (Ge) and silicon (Si).
摘要:
A polymer having a repeating unit represented by Formula 1, wherein R1 through R14, X1, and Ar1 are the same as defined in the detailed description, and an organic light-emitting diode including the polymer are described.
摘要:
A light absorbing layer for a photoelectrode structure, the light absorbing layer including copper oxide, wherein metallic copper (Cu) is present at a grain boundary of the copper oxide. Also, a photoelectrode structure including the light absorbing layer, a photoelectrochemical cell including the photoelectrode structure, and a solar cell including the light absorbing layer.
摘要:
A composite protective layer for a photoelectrode, the composite protective layer including a chemical protective layer; and a physical protective layer, wherein the chemical protective layer has corrosion rate of 0.1 Coulombs per square centimeter per 10 hours or less when evaluated at a water decomposition potential, and the physical protective layer has a moisture transmittance rate of 0.001 grams per square meter per day or less and has an electrical conductivity.