Upconversion semiconductor interfaces by wafer bonding for photovoltaic applications
| Autor: | Naoki Sano, Kosuke Nishigaya, Katsuaki Tanabe |
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| Rok vydání: | 2022 |
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| Zdroj: | Applied Physics Letters. 121:011601 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/5.0097427 |
| Popis: | Efficient use of incident sunlight is an important key issue for the improvement of solar cell performance. Here, we propose and experimentally demonstrate photon upconversion material mediated semiconductor bonding as a concept of interfacial functionalization. Our wavelength-converting semiconductor interface comprises rare earth doped upconversion nanoparticles embedded in a hydrogel matrix. Advantageously, the bonding process is conducted at room temperature in ambient air. As a proof of principle, photocurrent enhancement in bonded Si solar cells is demonstrated. Our technical scheme could be useful to improve the performance and structural flexibility of various optoelectronic devices by delivering the preferred frequency to each of the optical components. 【研究成果】光の波長変換機能を利用した新たな半導体接合法の開発に成功 --低コストで太陽電池の光電変換効率向上が可能に--. 京都大学プレスリリース. 2022-07-08. Enhancing solar efficiency with upconversion: Wafer bonding technology improves photovoltaics. 京都大学プレスリリース. 2022-07-28. |
| Databáze: | OpenAIRE |
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