摘要:
A semiconductor material of the present invention is a semiconductor material including an oxynitride containing at least one element selected from the Group 4 elements and Group 5 elements. In the oxynitride, part of at least one selected from oxygen and nitrogen is substituted with carbon. Nb is preferable as the Group 5 element.
摘要:
A photoelectrochemical cell (100) includes: a semiconductor electrode (120) including a substrate (121), a first n-type semiconductor layer (122) disposed on the substrate (121), and a second n-type semiconductor layer (123) and a conductor (124) disposed apart from each other on the first n-type semiconductor layer (122); a counter electrode (130) connected electrically to the conductor (124); an electrolyte (140) in contact with surfaces of the second n-type semiconductor layer (123) and the counter electrode (130); and a container (110) accommodating the semiconductor electrode (120), the counter electrode (130) and the electrolyte (140). In the semiconductor electrode (120), relative to a vacuum level, (I) band edge levels of a conduction band and a valence band in the second n-type semiconductor layer (123), respectively, are higher than band edge levels of a conduction band and a valence band in the first n-type semiconductor layer (122), (II) a Fermi level of the first n-type semiconductor layer (122) is higher than a Fermi level of the second n-type semiconductor layer (123), and (III) a Fermi level of the conductor (124) is higher than the Fermi level of the first n-type semiconductor layer (122). The photoelectrochemical cell (100) generates hydrogen by irradiation of the second n-type semiconductor layer (123) with light.
摘要:
The NbON film of the present invention is a NbON film in which a photocurrent is generated by light irradiation. The NbON film of the present invention is desirably a single-phase film. The hydrogen generation device (600) of the present invention includes: an optical semiconductor electrode (620) including a conductor (621) and the NbON film (622) of the present invention disposed on the conductor (621); a counter electrode (630) connected electrically to the conductor (621); a water-containing electrolyte (640) disposed in contact with a surface of the NbON film (622) and a surface of the counter electrode (630); and a container (610) containing the optical semiconductor electrode (620), the counter electrode (630), and the electrolyte (640). In this device, hydrogen is generated by irradiating the NbON film (622) with light.
摘要:
A semiconductor material of the present invention is a semiconductor material including an oxynitride containing at least one element selected from the Group 4 elements and Group 5 elements. In the oxynitride, part of at least one selected from oxygen and nitrogen is substituted with carbon. Nb is preferable as the Group 5 element.
摘要:
The NbON film of the present invention is a NbON film in which a photocurrent is generated by light irradiation. The NbON film of the present invention is desirably a single-phase film. The hydrogen generation device (600) of the present invention includes: an optical semiconductor electrode (620) including a conductor (621) and the NbON film (622) of the present invention disposed on the conductor (621); a counter electrode (630) connected electrically to the conductor (621); a water-containing electrolyte (640) disposed in contact with a surface of the NbON film (622) and a surface of the counter electrode (630); and a container (610) containing the optical semiconductor electrode (620), the counter electrode (630), and the electrolyte (640). In this device, hydrogen is generated by irradiating the NbON film (622) with light.
摘要:
The optical semiconductor of the present invention is an optical semiconductor containing In, Ga, Zn, O and N, and has a composition in which a part of oxygen (O) is substituted by nitrogen (N) in a general formula: In2xGa2(1-x)O3(ZnO)y, where x and y satisfy 0.2
摘要翻译:本发明的光学半导体是含有In,Ga,Zn,O和N的光学半导体,其通式为:In 2 x Ga 2(1)中的一部分氧(O)被氮(N)取代的组成 -x)O 3(ZnO)y,其中x和y满足0.2
摘要:
The optical semiconductor of the present invention is an optical semiconductor containing In, Ga, Zn, O and N, and has a composition in which a part of oxygen (O) is substituted by nitrogen (N) in a general formula: In2xGa2(1-x)O3(ZnO)y, where x and y satisfy 0.2
摘要翻译:本发明的光学半导体是含有In,Ga,Zn,O和N的光学半导体,其通式为:In 2 x Ga 2(1)中的一部分氧(O)被氮(N)取代的组成 -x)O 3(ZnO)y,其中x和y满足0.2
摘要:
A photoelectrochemical cell (100) includes: a semiconductor electrode (120) including a substrate (121), a first n-type semiconductor layer (122) disposed on the substrate (121), and a second n-type semiconductor layer (123) and a conductor (124) disposed apart from each other on the first n-type semiconductor layer (122); a counter electrode (130) connected electrically to the conductor (124); an electrolyte (140) in contact with surfaces of the second n-type semiconductor layer (123) and the counter electrode (130); and a container (110) accommodating the semiconductor electrode (120), the counter electrode (130) and the electrolyte (140). In the semiconductor electrode (120), relative to a vacuum level, (I) band edge levels of a conduction band and a valence band in the second n-type semiconductor layer (123), respectively, are higher than band edge levels of a conduction band and a valence band in the first n-type semiconductor layer (122), (II) a Fermi level of the first n-type semiconductor layer (122) is higher than a Fermi level of the second n-type semiconductor layer (123), and (III) a Fermi level of the conductor (124) is higher than the Fermi level of the first n-type semiconductor layer (122). The photoelectrochemical cell (100) generates hydrogen by irradiation of the second n-type semiconductor layer (123) with light.
摘要:
The optically pumped semiconductor according to the present invention is an optically pumped semiconductor that is a semiconductor of a perovskite oxide. The optically pumped semiconductor has a composition represented by a general formula: BaZr1-xMxO3-α, where M denotes at least one element selected from trivalent elements, x denotes a numerical value more than 0 but less than 0.8, and α denotes an amount of oxygen deficiency that is a numerical value more than 0 but less than 1.5. The optically pumped semiconductor has a crystal system of a cubic, tetragonal, or orthorhombic crystal. When lattice constants of the crystal system are referred to as a, b, and c, provided that a≦b≦c, conditions that 0.41727 nm≦a, b, c≦0.42716 nm and a/c≧0.98 are satisfied.
摘要:
The optically pumped semiconductor according to the present invention is an optically pumped semiconductor that is a semiconductor of a perovskite oxide. The optically pumped semiconductor has a composition represented by a general formula: BaZr1-xMxO3-α, where M denotes at least one element selected from trivalent elements, x denotes a numerical value more than 0 but less than 0.8, and α denotes an amount of oxygen deficiency that is a numerical value more than 0 but less than 1.5. The optically pumped semiconductor has a crystal system of a cubic, tetragonal, or orthorhombic crystal. When lattice constants of the crystal system are referred to as a, b, and c, provided that a≦b≦c, conditions that 0.41727 nm≦a, b, c≦0.42716 nm and a/c≧0.98 are satisfied.