期刊
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷 2, 期 14, 页码 1646-1650出版社
AMER CHEMICAL SOC
DOI: 10.1021/jz200680v
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- NEDO
We demonstrate the feasibility of bulk-heterojunction (BHJ) photovoltaic solar cells, which consist of surfactant-free silicon nanocrystals (size similar to 3 nm) and semiconducting single-walled carbon nanotubes (diameter 1 nm) sandwiched between Al and ITO electrodes. In particular, we demonstrate that BHJ cells composed of p-type doped Si-ncs, in contrast with n-type, show a diode-like behavior, short-circuit current, and open-circuit voltage because the energy levels between p-type Si-ncs and semiconducting SWCNTs are adequate for exciton dissociation and carrier generation. Prototype BHJ cells made of p-type doped Si-ncs and semiconducting SWCNTs harvest sun light in broad spectral range 300-1400 nm.
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