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A light guide component for a betavoltaic isotope battery

A technology of isotope batteries and light guide components, which is applied in the application of radiation from radioactive sources, obtaining electrical energy from radioactive sources, nuclear engineering, etc. The effect of energy conversion efficiency and electrical output power, increasing output efficiency, and efficient output

Inactive Publication Date: 2018-11-23
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the above-mentioned documents and patents are: the light output power per unit area of ​​the luminescent material is not significantly improved, and for thin-sheet luminescent materials, the transducing device arranged in a sandwich cake type cannot use side light emission. Due to the factor of total reflection on the upper and lower surfaces, side light emission may It accounts for half of the total luminous amount; for six-sided or side-arranged transducing devices, the optical path is often too long, and the self-absorption of light by the luminescent material is serious, resulting in low output power of light; an external convex lens is used Concentrating light, in order to achieve high-efficiency light guiding, the optical path design will be very complicated, and the entire device will be larger

Method used

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  • A light guide component for a betavoltaic isotope battery
  • A light guide component for a betavoltaic isotope battery
  • A light guide component for a betavoltaic isotope battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 It is a schematic diagram of the photoconductive assembly used in the radiovoltaic isotope battery of the present invention.

[0025] figure 1 Among them, the reflective film layer 1 and the side high reflective layer 3 are made of metal aluminum or silver, or low atomic number dielectric material SiO 2 , ZrO 2 Composed film system; luminescent material layer 2 is rigid luminescent material such as inorganic oxide, sulfide crystal and ceramics, or flexible organic luminescent material such as polyphenylene hydrocarbons, aromatic hydrocarbons and its derivatives, luminescent material The layer is in the form of flakes; the transmission film layer 4 is a single layer of SiO 2 , or multilayer dielectric material SiO 2 , ZrO 2 Composed of film systems, or multi-layer dielectric material SiO 2 、 Ta 2 o 5 Composed film system. The reflective film layer 1 is formed on the upper surface of the luminescent material layer 2 by electron beam evaporation or ion be...

Embodiment 2

[0027] figure 2 It is a schematic diagram of a light guide component coated with silicone oil on the transmission surface.

[0028] figure 2 Among them, the reflective film layer 1 is formed on the upper surface of the luminescent material layer 2 by electron beam evaporation or ion beam sputtering, the side high reflection layer 3 is formed on the side of the luminescent material layer 2, and the transmissive film layer 4 is formed on the surface of the luminescent material layer 2. On the lower surface, a silicone oil layer 5 is coated on the surface of the transmissive film layer to couple the light guide component with the photovoltaic device.

Embodiment 3

[0030] image 3 It is a multilayer dielectric material SiO 2 , ZrO 2 Schematic diagram of the combined film system.

[0031] image 3 Among them, the upper surface and side of the luminescent material layer 2 are plated with a multi-layer SiO26 and ZrO2 layer 7 by electron beam evaporation or ion beam sputtering, and by adjusting the number and thickness of the SiO2 layer 6 and ZrO2 layer 7, Realize 95% reflection of the light generated inside the luminescent material layer 2 on the upper surface and side surfaces.

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Abstract

The invention provides a light guide component for a betavoltaic isotope battery. The light guide component comprises a reflection film layer, a light-emitting material layer, a side surface high-reflectivity layer and a transmission film layer. The reflection film layer is close to an isotope battery radiation source; the transmission film layer is close to an isotope battery transducer; the light-emitting material layer is in the shape of a thin sheet; the reflection film layer is located on the upper surface of the light-emitting material layer; the side surface high-reflectivity layer is located at the side surface of the light-emitting material layer; the transmission film layer is located at the lower surface of the light-emitting material layer. The high-reflectivity layer, the sidesurface high-reflectivity layer and the transmission film layer all have a thickness less than 4 [mu]m. The reflection film layer, the side surface high-reflectivity layer and the transmission film layer are single-layer materials or film structures consisting of multi-layer materials. The light guide component integrates a light-emitting material and light guide means for a betavoltaic isotope battery, so that light from radioluminescence materials is emitted from one side in a directed manner with high efficiency and the light emission power per unit area of the light-emitting materials isincreased while the size of the light-emitting materials is not increased.

Description

technical field [0001] The invention belongs to the technical field of isotope batteries, and in particular relates to a photoconductive component for radiovoltaic isotope batteries. Background technique [0002] At present, radiovoltaic isotope cells mainly include direct radiation voltaic effect isotope cells, radioluminescence-photovoltaic effect isotope cells and radiovoltaic / photovoltaic combined conversion isotope cells. The earliest radiovoltaic isotope batteries mainly used the direct radiation volt effect mechanism of low- and medium-energy radioisotopes, which was limited to the self-absorption effect of low- and medium-energy radioisotopes, and the room for improving its output power was very limited. On the transducer device, the performance of the transducer device will inevitably decline due to radiation damage. The more radioactive substances loaded, the greater the radiation damage, which severely limits the improvement of the overall output power and service...

Claims

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Application Information

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IPC IPC(8): G21H1/00G21H1/12
CPCG21H1/00G21H1/12
Inventor 李刚杨玉青熊晓玲董文丽徐建胡睿雷轶松刘业兵魏洪源杨宇川涂俊彭太平罗顺忠
Owner INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
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