| Autor: |
Yue Yu, Zejie Yu, Xiankai Sun |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
IEEE Photonics Journal, Vol 12, Iss 6, Pp 1-7 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
1943-0655 |
| DOI: |
10.1109/JPHOT.2020.3029213 |
| Popis: |
We have proposed and theoretically analyzed nonmetallic broadband visible-light absorbers based on alternating SiO2/InAs thin films on SiO2 substrate. Compared with the conventional absorbers, the proposed SiO2/InAs structure can achieve excellent absorption within a smaller volume. The average absorption can exceed 97% in the wavelength range of 300-850 nm. With a two-dimensional InAs grating atop, the device can achieve the average absorption of >92% with insensitivity to light polarization and incident angles. Due to the advantages of broadband and near-unity absorption, polarization and incident angle insensitivity, controllable and mature fabrication processes, the proposed visible-light absorbers will find wide applications in solar energy harvesting, thermal emission, and water splitting. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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