Volume 13, Issue 22 1700798
Communication

Cobalt Phosphide Double-Shelled Nanocages: Broadband Light-Harvesting Nanostructures for Efficient Photothermal Therapy and Self-Powered Photoelectrochemical Biosensing

Jingqi Tian

Jingqi Tian

School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457 Singapore

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Houjuan Zhu

Houjuan Zhu

School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457 Singapore

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Jie Chen

Jie Chen

School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457 Singapore

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Xinting Zheng

Xinting Zheng

Institute of Materials Research and Engineering, A*STAR (Agency for Science Technology and Research), 138634 Singapore

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Hongwei Duan

Hongwei Duan

School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457 Singapore

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Kanyi Pu

Kanyi Pu

School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457 Singapore

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Peng Chen

Corresponding Author

Peng Chen

School of Chemical and Biomedical Engineering, Nanyang Technological University, 637457 Singapore

E-mail: [email protected]Search for more papers by this author
First published: 26 April 2017
Citations: 70

Abstract

Ultra-broadband light-absorbing materials are highly desired for effective solar-energy harvesting. Herein, novel cobalt phosphide double-shelled nanocages (CoP-NCs) are synthesized. Uniquely, these CoP-NCs are able to nonselectively absorb light spanning the full solar spectrum, benefiting from its electronic properties and hollow nanostructure. They promise a wide range of applications involving solar energy utilization. As proof-of-concept demonstrations, CoP-NCs are employed here as effective photothermal agents to ablate cancer cells by utilizing their ability of near-infrared heat conversion, and as photoactive material for self-powered photoelectrochemical sensing by taking advantage of their ability of photon-to-electricity conversion.

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