دورية
Hot carrier photocurrent induced by 0.92 eV photon energy radiation in a Si solar cell
| العنوان: | Hot carrier photocurrent induced by 0.92 eV photon energy radiation in a Si solar cell |
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| المؤلفون: | Zharchenko, Ihor, Gradauskas, Jonas, Masalskyi, Oleksandr, Rodin, Aleksej |
| مصطلحات موضوعية: | hot carriers, solar cell, photocurrent, p-n junction, Shockley-Queisser theory |
| الوصف: | Absorption of the below-bandgap solar radiation and direct pre-thermalizational impact of a hot carrier (HC) on the operation of a single-junction solar cell are ignored by the Shockley-Queisser theory. The detrimental effect of the HC is generally accepted only via the thermalization-caused heating of the lattice. Here, the authors demonstrate experimental evidence of the HC photocurrent induced by the below-bandgap 0.92 eV photon energy radiation in an industrial silicon solar cell. The carriers are heated both through direct free-carrier absorption and by residual photon energy remaining after the electron-hole pair generation. The polarity of the HC photocurrent opposes that of the conventional generation photocurrent, indicating that the total current across the p-n junction is contingent upon the interplay between these two currents. A model of current-voltage characteristics analysis allowing us to obtain a reasonable value of the HC temperature was also proposed. This work is remarkable in two ways: first, it contributes to an understanding of HC phenomena in photovoltaic devices, and second, it prompts discussion of the HC photocurrent as a new intrinsic loss mechanism in solar cells. Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024). |
| نوع الوثيقة: | Article |
| اللغة: | eng |
| الوصول الحر: | http://yadda.icm.edu.pl/baztech/element/bwmeta1.element.baztech-562a3008-582e-4a6a-bb36-5de55d64b80cTest |
| رقم الانضمام: | edsbzt.bwmeta1.element.baztech.562a3008.582e.4a6a.bb36.5de55d64b80c |
| قاعدة البيانات: | BazTech |
| الوصف غير متاح. |