Full Paper
980-nm Laser-Driven Photovoltaic Cells Based on Rare-Earth Up-Converting Phosphors for Biomedical Applications
Article first published online: 2 NOV 2009
DOI: 10.1002/adfm.200901630
Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Chen, Z., Zhang, L., Sun, Y., Hu, J. and Wang, D. (2009), 980-nm Laser-Driven Photovoltaic Cells Based on Rare-Earth Up-Converting Phosphors for Biomedical Applications. Adv. Funct. Mater., 19: 3815–3820. doi: 10.1002/adfm.200901630
Publication History
- Issue published online: 3 DEC 2009
- Article first published online: 2 NOV 2009
- Manuscript Received: 13 AUG 2009
Funded by
- National Natural Science Foundation of China. Grant Numbers: 50872020, 50902021
- Program for New Century Excellent Talents of the University in China
- “Pujiang” Program of Shanghai Education Commission. Grant Number: 09P51400500
- “Dawn” Program of the Shanghai Education Commission. Grant Number: 08SG32
- Shanghai Leading Academic Discipline Project. Grant Number: B603
- “Chen Guang” project. Grant Number: 09CG27
Keywords:
- bionanotechnology;
- lasers;
- luminescence;
- photovoltaic device
Abstract
A prerequisite for designing and constructing wireless biological nanorobots is to obtain an electrical source that is continuously available in the operational biological environment. Herein the first preparation of 980-nm laser-driven photovoltaic cells (980LD-PVCs) by introducing of a film of rare-earth up-converting nanophosphors in conventional dye-sensitized solar cells is reported. Under the irradiation of a 980-nm laser with a power of 1 W, the visible up-converting luminescence of rare-earth nanophosphors can be efficiently absorbed by the dyes in 980LD-PVCs so that they exhibit a maximal output power of 0.47 mW. In particular, after being covered with 1 to 6 layers of pig intestines (thickness: ca. 1 mm per layer) as a model of biological tissues, 980LD-PVCs still possess a maximal output power of between 0.28 and 0.02 mW, which is efficient enough to drive many kinds of biodevices. This research opens up the possibility of preparing and/or developing novel electrical sources for wireless biological nanorobots and many other biodevices.

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