研究目的
To predict the lifetime as the dosimeter using the InGaP solar cell by clarifying the effect of minority-carrier diffusion length (L) on a radiation-induced current as a dose signal in the InGaP solar cell.
研究成果
The InGaP solar cells are expected to have great potential as dosimeters for the Fukushima Daiichi Nuclear Power Plant decommissioning, with an operation lifetime of more than 10 h in a high-level radiation environment.
研究不足
The study's limitations include the need for further investigation into the radiation resistance parameter such as the KL of the InGaP solar cell by an experimental test.
1：Experimental Design and Method Selection:
The study involved irradiation tests and empirical calculations to understand the effect of minority-carrier diffusion length (L) on a radiation-induced current in InGaP solar cells.
2：Sample Selection and Data Sources:
InGaP solar cells were used as samples, and the short-circuit current density (Jsc) was measured as a function of the γ-ray dose rate.
3：List of Experimental Equipment and Materials:
The 60Co γ-ray source was used for irradiation tests, and the output current of the solar cell was measured using a DC source/monitor.
4：Experimental Procedures and Operational Workflow:
The samples were irradiated with γ-rays, and the induced current was measured before, during, and after irradiation.
5：Data Analysis Methods:
The relationship between the induced current density and the dose rate was analyzed using empirical equations to estimate the minority-carrier diffusion length (L).
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