SOLAR CELL HAVING POROUS STRUCTURE IN WHICH METAL NANOPARTICLES ARE CARRIED IN PORES

WIPO Patent Application WO/2011/115292

A1

Provided is a solar cell achieving high energy-conversion efficiency by increasing the absorbance at the surface of the solar cell and reducing the reflectance. The disclosed solar cell is a pn-junction semiconductor solar cell that includes a surface having a porous structure, the pn-junction semiconductor solar cell being characterized in that: metal nanoparticles that exhibit surface plasmon absorption are carried in the pores of the porous structure; and the porous structure is either formed in a material having photoelectric effects in the pn-junction semiconductor solar cell or formed in a light transmissive layer provided on the surface of the pn-junction semiconductor solar cell.

IHARA MANABU (JP)
TANAKA YUKI (JP)
HACHIMURA HIRONORI (JP)

PCT/JP2011/056804

September 22, 2011

March 22, 2011

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TOKYO INST TECH (JP)
IHARA MANABU (JP)
TANAKA YUKI (JP)
HACHIMURA HIRONORI (JP)

H01L31/04

JP2007335222A	2007-12-27
JPH10340742A	1998-12-22
JP2009246025A	2009-10-22
JP2000299482A	2000-10-24
JP2003273382A	2003-09-26
JP2006228867A	2006-08-31
JP2009054936A	2009-03-12
JP2009135517A	2009-06-18
JP2007265694A	2007-10-11
JPH10340742A	1998-12-22
JP2007335222A	2007-12-27

HUIJUAN BI ET AL.: "Optical absorption of Ag oligomers dispersed within pores of mesoporous silica", CHEMICAL PHYSICS LETTERS, vol. 357, 2002, pages 249 - 254, XP008166610
M. IHARA ET AL., J. PHYS. CHEM. B, vol. 101, 1997, pages 5153

TAKAHASHI NORIAKI (JP)
Noriaki Takahashi (JP)

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