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Improving Radiation Resistance of GaInP/GaInAs/Ge Triple-Junction Solar Cells Using GaInP Back-Surface Field in the Middle Subcell
| Content Provider | MDPI |
|---|---|
| Author | Gao, Hui Yang, Ruixia Zhang, Yonghui |
| Copyright Year | 2020 |
| Description | This paper studies the radiation resistance for GaInP/GaInAs/Ge triple-junction space solar cells with a GaInP back-surface field (BSF) in the GaInAs middle subcell compared with those with an AlGaAs BSF. The results show that the initial electrical performance is almost the same for both of them. However, the radiation resistance of the GaInP BSF cell was improved. After irradiation by 1 MeV electron beam with a cumulative dose of 1015 e/cm2, the Jsc declined by 4.73% and 6.61% for the GaInP BSF cell and the AlGaAs BSF cell, respectively; the efficiency degradation was 13.64% and 14.61% for the GaInP BSF cell and the AlGaAs BSF cell, respectively, leading to a reduced degradation level of 6%. The mechanism for GaInP BSF to improve the radiation resistance of GaInP/GaInAs/Ge triple-junction solar cells is also discussed in this work. Similar results were obtained when irradiation cumulative doses varied from 1 × 1014 e/cm2 to 1 × 1016 e/cm2. |
| Starting Page | 1958 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma13081958 |
| Journal | Materials |
| Issue Number | 8 |
| Volume Number | 13 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-04-22 |
| Access Restriction | Open |
| Subject Keyword | Materials Nuclear Energy and Engineering Radiation Resistance Electron Beam Irradiation Gainp/gainas/ge Triple-junction Space Solar Cell Back-surface Field |
| Content Type | Text |
| Resource Type | Article |
