The DOI matches its Crossref record; 24 of the 24 references it cites were found in a registry or an index.
Core–Shell Heterojunction of Silicon Nanowire Arrays and Carbon Quantum Dots for Photovoltaic Devices and Self-Driven Photodetectors
Abstract
Silicon nanostructure-based solar cells have lately intrigued intensive interest because of their promising potential in next-generation solar energy conversion devices. Herein, we report a silicon nanowire (SiNW) array/carbon quantum dot (CQD) core-shell heterojunction photovoltaic device by directly coating Ag-assisted chemical-etched SiNW arrays with CQDs. The heterojunction with a barrier height of 0.75 eV exhibited excellent rectifying behavior with a rectification ratio of 10(3) at ±0.8 V in the dark and power conversion efficiency (PCE) as high as 9.10% under AM 1.5G irradiation. It is believed that such a high PCE comes from the improved optical absorption as well as the optimized carrier transfer and collection capability. Furthermore, the heterojunction could function as a high-performance self-driven visible light photodetector operating in a wide switching wavelength with good stability, high sensitivity, and fast response speed. It is expected that the present SiNW array/CQD core-shell heterojunction device could find potential applications in future high-performance optoelectronic devices.
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Metadata
- Authors
- Xie, C., Nie, B., Zeng, L., Liang, F.-X., Wang, M.-Z., Luo, L., Feng, M., Yu, Y., Wu, C.-Y., Wu, Y., & Yu, S.-H.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-03-31
- Volume
- 8
- Issue
- 4
- Pages
- 4015-4022
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2332210331
- Cited by
- 283
- References
- 24
- FWCI
- 16.80
- Type
- journal article
- Language
- en
- Open access
- closed
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