Energy loading and transduction integrated nuclear battery

Abstract

The invention discloses an energy loading and transduction integrated nuclear battery, and belongs to the technical field of nuclear energy utilization. The principle of the nuclear battery is as follows: one or more stable isotopes in a semiconductor transduction material in the radiation volt effect nuclear battery are replaced by radioactive isotopes, alpha or beta particles emitted by the radioactive isotopes are directly deposited in the semiconductor transduction material, a large number of electron hole pairs are generated, a Schottky structure is formed by a highly-doped semiconductor substrate, a lowly-doped radioactive semiconductor layer and a battery Schottky metal layer, a built-in electric field is formed, the electron hole pairs directionally move under the action of the built-in electric field, and current is generated after a load is externally connected and a closed loop is formed. Compared with a nuclear battery with a radioactive source and a transducer separated structure, the nuclear battery provided by the invention can enable the radioactive source to be in full contact with the semiconductor transduction material, reduce the influence of the radioactive source on the absorption effect, improve the energy utilization rate of the radioactive source and increase the output power of the nuclear battery.

Description

technical field [0001] The invention belongs to the fields of nuclear physics, nuclear energy application and micro-energy, and in particular relates to an integrated energy-carrying and energy-transforming nuclear battery. Background technique [0002] A nuclear battery is a device that converts the decay energy of radioactive isotopes into electrical energy. It is not affected by the external environment during the power supply process, and its working conditions are stable and reliable. Applications, such as deep sea, deep space, polar regions, remote areas, and cardiac pacemakers; among them, radiant volt effect nuclear batteries are easy to integrate with integrated circuits because they are semiconductor devices, and are especially suitable for use as energy sources for micro-electromechanical systems. [0003] However, the current radiovoltaic effect nuclear battery has the problem of low energy utilization. Since the radioactive source itself has a certain thickness,...

AI Technical Summary

Problems solved by technology

In the case of using a mesh electrode, if the mesh is too large, the total resistance of the device will be relatively large, resulting in a decrease in the operating voltage of the nuclear battery; if the mesh is too small, it will have a more obvious blocking effect on radioactive particles. More energy is deposited inside the electrode instead of the semiconductor material, which reduces the utilization rate of energy; the traditional Schottky-type radiant volt effect nuclear battery consists of a radioactive source, a Schottky metal layer, and a semiconductor replacement from top to bottom. Energy devices, ohmic electrodes, due to the self-absorption effect, only a part of the α or β particles emitted by the radioactive source can be emitted; due to the blocking effect of the Schottky metal layer, most of the emitted α or β particles are deposited in the Schottky metal layer cannot be exploited

The combined effect of these two aspects makes the short-circuit current of the traditional discrete structure β radiation volt effect nuclear battery smaller, the output power is lower, and the energy utilization rate of the radioactive source is low.

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