Large-surface-area boron phosphide liquid junction solar cells
- Delft Univ. of Technology (Netherlands). Lab. for Inorganic Chemistry
A new semiconductor electrode for sensitized liquid junction photovoltaic solar cells is demonstrated. By making use of chemical vapor deposition, a graphite substrate is covered with a nanostructured thin film consisting of whiskers of boron phosphide which are sensitized by amorphous boron subphosphide (B{sub x}P). To obtain the two different morphologies of boron phosphide, the partial pressure of the boron precursor is changed during chemical vapor deposition synthesis. The optical properties of amorphous B{sub x}P thin films on quartz substrates were investigated and it is found that the absorption edge is dependent on the boron content. Photocurrent action spectra of sensitized nanostructured films show a mobility edge of 1.5 eV, which is well below the adsorption edge of 2.0 eV of crystalline boron phosphide.
- OSTI ID:
- 680019
- Journal Information:
- Journal of the Electrochemical Society, Vol. 146, Issue 6; Other Information: PBD: Jun 1999
- Country of Publication:
- United States
- Language:
- English
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