期刊
NANOMATERIALS
卷 9, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/nano9121742
关键词
semiconductor; interface; wafer bonding; frequency conversion; optoelectronics; photonic device; solar cell; photonic integrated circuit
类别
资金
- Japan Society for the Promotion of Science (JSPS)
- Nanotechnology Platform Project - Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan
A new concept of semiconductor wafer bonding, mediated by optical wavelength conversion materials, is proposed and demonstrated. The fabrication scheme provides simultaneous bond formation and interfacial function generation, leading to efficient device production. Wavelength-converting functionalized semiconductor interfacial engineering is realized by utilizing an adhesive viscous organic matrix with embedded fluorescent particles. The bonding is carried out in ambient air at room temperature and therefore provides a cost advantage with regard to device manufacturing. Distinct wavelength conversion, from ultraviolet into visible, and high mechanical stabilities and electrical conductivities in the bonded interfaces are verified, demonstrating their versatility for practical applications. This bonding and interfacial scheme can improve the performance and structural flexibility of optoelectronic devices, such as solar cells, by allowing the spectral light incidence suitable for each photovoltaic material, and photonic integrated circuits, by delivering the respective preferred frequencies to the optical amplifier, modulator, waveguide, and detector materials.
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