Abstract: According to one embodiment, a radiation detector includes a first layer including a metal complex, a first conductive layer, a second conductive layer provided between the first layer and the first conductive layer, and an organic semiconductor layer provided between the first conductive layer and the second conductive layer.

Abstract: According to an embodiment, a detection element includes a first electrode, a second electrode, an organic conversion layer, and a third electrode. The organic conversion layer is provided between the first electrode and the second electrode, and is configured to convert energy of a radiant ray into a charge. The third electrode is provided inside the organic conversion layer. Bias is applied to the third electrode.

Abstract: A magnet material of an embodiment includes a composition represented by a formula 1: (Fe1-x-yCoxTy)2(B1-aAa)b, and a metallic structure having a CuAl2 crystal phase as a main phase. T is at least one element selected from V, Cr, and Mn. A is at least one element selected from C, N, Si, S, P, and Al. An atomic ratio x of Co and an atomic ratio y of the element T satisfy 0.01?y?0.5 and x+y?0.5. When the element T includes at least one element selected from V and Cr, a total atomic ratio of V and Cr is 0.03 or more. When the element T includes Mn, an atomic ratio of Mn is 0.3 or less. An atomic ratio a of the element A satisfies 0?a?0.4. A total atomic ratio b of B and the element A satisfies 0.8?b?1.2.

Abstract: According to one embodiment, a radiation detector includes a first conductive layer, a second conductive layer, and a first layer. The first layer is provided between the first conductive layer and the second conductive layer. The first layer includes a first region and a second region. The first region includes a metal complex including a first metallic element. The second region includes an organic semiconductor material. The first metallic element includes at least one selected from the group consisting of Ir, Pt, Pb, and Cu.

Abstract: A detection device according to an embodiment of the present disclosure includes a plurality of semiconductor layers, each including a plurality of electrode regions and a semiconductor region. The plurality of electrode regions are: arranged at intervals in a cross direction crossing a thickness direction; configured to generate electric charges by a photoelectric effect of irradiation of radiation; and configured to produce an electric field in the cross direction by voltage application. The semiconductor region is provided at least between the electrode regions adjacent to one another in the cross direction. The plurality of semiconductor layers are stacked in the thickness direction.

Abstract: According to one embodiment, a radiation detector includes a first layer including a metal complex, a first conductive layer, a second conductive layer provided between the first layer and the first conductive layer, and an organic semiconductor layer provided between the first conductive layer and the second conductive layer.

Abstract: A detection device according to an embodiment of the present disclosure includes a plurality of semiconductor layers, each including a plurality of electrode regions and a semiconductor region. The plurality of electrode regions are: arranged at intervals in a cross direction crossing a thickness direction; configured to generate electric charges by a photoelectric effect of irradiation of radiation; and configured to produce an electric field in the cross direction by voltage application. The semiconductor region is provided at least between the electrode regions adjacent to one another in the cross direction. The plurality of semiconductor layers are stacked in the thickness direction.

Abstract: According to one embodiment, a radiation detector includes a first conductive layer, a second conductive layer, and a first layer. The first layer is provided between the first conductive layer and the second conductive layer. The first layer includes a first region and a second region. The first region includes a metal complex including a first metallic element. The second region includes an organic semiconductor material. The first metallic element includes at least one selected from the group consisting of Ir, Pt, Pb, and Cu.

Abstract: According to an embodiment, a detection element includes a first electrode, a second electrode, an organic conversion layer, and a third electrode. A bias is applied to the first electrode. The organic conversion layer is arranged between the first electrode and the second electrode, and is configured to convert energy of a radiation into an electric charge. The third electrode is arranged in the organic conversion layer.

Abstract: A radiation detector includes a first scintillator, a second scintillator, a first photoelectric conversion layer, and a second photoelectric conversion layer. The first scintillator converts ? rays into first scintillation light. The second scintillator converts the ? rays into second scintillation light. The first photoelectric conversion layer is provided between the first scintillator and the second scintillator and converts the first scintillation light into electric charges. The second photoelectric conversion layer is provided between the first photoelectric conversion layer and the second scintillator and converts the second scintillation light into electric charges. The first scintillator, the second scintillator, the first photoelectric conversion layer, and the second photoelectric conversion layer are each formed with an organic material as a main component. The thickness of the second scintillator is larger than the thickness of the first scintillator.

Abstract: According to an embodiment, a detection element includes a first electrode, a second electrode, an organic conversion layer, and a third electrode. The organic conversion layer is provided between the first electrode and the second electrode, and is configured to convert energy of a radiant ray into a charge. The third electrode is provided inside the organic conversion layer. Bias is applied to the third electrode.

Abstract: According to an embodiment, a detection element includes a first electrode, a second electrode, an organic conversion layer, and a third electrode. A bias is applied to the first electrode. The organic conversion layer is arranged between the first electrode and the second electrode, and is configured to convert energy of a radiation into an electric charge. The third electrode is arranged in the organic conversion layer.

Abstract: A magnet material of an embodiment includes a composition represented by a formula 1: (Fe1-x-yCoxTy)2(B1-aAa)b, and a metallic structure having a CuAl2 crystal phase as a main phase. T is at least one element selected from V, Cr, and Mn. A is at least one element selected from C, N, Si, S, P, and Al. An atomic ratio x of Co and an atomic ratio y of the element T satisfy 0.01?y?0.5 and x+y?0.5. When the element T includes at least one element selected from V and Cr, a total atomic ratio of V and Cr is 0.03 or more. When the element T includes Mn, an atomic ratio of Mn is 0.3 or less. An atomic ratio a of the element A satisfies 0?a?0.4. A total atomic ratio b of B and the element A satisfies 0.8?b?1.2.

Abstract: In one embodiment, a polymer includes a recurring unit containing a bivalent group expressed by a formula (1) shown below. A weight-average molecular weight of the polymer is in a range of 3000 or more to 1000000 or less. R1 is a monovalent group selected from hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkanoyl group, a substituted or unsubstituted aryl group, and a substituted or unsubstituted heteroaryl group. X is an atom selected from oxygen, sulfur, and selenium. Y and Z are each independently a bivalent group selected from a carbonyl group, a sulfinyl group, and a sulfonyl group. A case where Y and Z are both the carbonyl groups is excluded.

Abstract: A magnet material of an embodiment includes a composition represented by a formula 1: (Fe1-x-yCoxTy)2(B1-aAa)b, and a metallic structure having a CuAl2 crystal phase as a main phase. T is at least one element selected from V, Cr, and Mn. A is at least one element selected from C, N, Si, S, P, and Al. An atomic ratio x of Co and an atomic ratio y of the element T satisfy 0.01?y?0.5 and x+y?0.5. When the element T includes at least one element selected from V and Cr, a total atomic ratio of V and Cr is 0.03 or more. When the element T includes Mn, an atomic ratio of Mn is 0.3 or less. An atomic ratio a of the element A satisfies 0?a?0.4. A total atomic ratio b of B and the element A satisfies 0.8?b?1.2.

Abstract: According to one embodiment, a photoelectric conversion element includes a first conductive layer, a second conductive layer, an organic semiconductor layer, and a first region. The first conductive layer includes a first metal. The organic semiconductor layer is provided between the first conductive layer and the second conductive layer. The first region includes the first metal and oxygen and is positioned between the organic semiconductor layer and the first conductive layer.

Abstract: An organic photoelectric conversion device of the embodiment includes an anode, a cathode, and an organic photoelectric conversion layer provided between the anode and the cathode. The organic photoelectric conversion layer contains a compound represented by the following general formula (1). [In the general formula (1), U, V, and W each independently represents a nitrogen-containing 6-membered aromatic ring which may have a substituent or a benzene ring which may have a substituent, at least one of U, V and W represents the nitrogen-containing 6-membered aromatic ring which may have a substituent, X represents any one of a halogen atom, a hydroxyl group, a carboxyl group, an alkyl group which may have a substituent, an aryl group which may have a substituent, an alkoxy group which may have a substituent, and an aryloxy group which may have a substituent.

Abstract: A polymer of an embodiment includes a repeating unit containing at least one bivalent group selected from the following formula (1) and the following formula (2). In the formulas (1) and (2), R is hydrogen, fluorine, an alkyl group, an aryl group, a heteroaryl group, or the like. X and Y are each an alkanoyl group, an aminocarbonyl group, an alkylsulfonyl group, or the like. Ar is an aryl group or a heteroaryl group.

Abstract: A polymer of an embodiment includes a repeating unit containing a bivalent group represented by the following formula (1). R is hydrogen, halogen, an alkyl group, an alkanoyl group, an aryl group, a heteroaryl group, or the like. X is oxygen, sulfur, selenium, or the like. Y and Z each is a bivalent group selected from a carbonyl group, a sulfinyl group, and a sulfonyl group. However, a case where Y and Z are both the carbonyl groups is excluded.

Abstract: An organic photoelectric conversion devise of the embodiment includes a charge transport layer comprised of a plurality of isomers containing a compound represented by a following general formula (1) and an enantiomer of the following general formula (1). In the general formula (1), A1, A2 and A3 respectively represent a different substituent group.