Photovoltaically active materials and cells containing them

Details Photovoltaically active materials and cells containing them Photovoltaically active materials and cells containing them

2006-04-11

2006-04-11

Nguyen, Nam (Department: 1753)

Batteries: thermoelectric and photoelectric

Photoelectric

Cells

C136S261000, C136S264000, C136S265000

Reexamination Certificate

active

07026543

ABSTRACT:
In a photovoltaic cell having a photovoltaically active semiconductor material constituted by a plurality of metals or metal oxides, the photovoltaically active material is selected from ap- or n-doped semiconductor material constituted by a ternary compound of the general formula (I)in-line-formulae description="In-line Formulae" end="lead"?MexSAySBz  (I)in-line-formulae description="In-line Formulae" end="tail"?withMe=Al, Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Cu or Ag,SA, SB=B, C, Si, Ge, Sb, Se or Te,where SAand SBrespectively come from different groups of the periodic table,x, y, z are independent of one another and can take values from 0.01 to 1,and where the proportion by weight of SAand SBtogether is no more than 30%, expressed in terms of the total semiconductor material,or a mixed oxide of the general formula (II)[(CaO)u·(SrO)v·(BaO)w·(1/2⁢Bi2⁢O3)x]f·2⁢n+a2·({k}·Men⁢On2⁢{2-k}·Men+a⁢On+a2)(II)withMe=Fe, Cu, V, Mn, Sn, Ti, Mo, Wn=integer from 1 to 6,a=1 or 2,f=number from 0.2 to 5,k=number from 0.01 to 2,in-line-formulae description="In-line Formulae" end="lead"?u+v+w+x=1.in-line-formulae description="In-line Formulae" end="tail"?

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Progress and outlook for high-efficiency crystalline silicon solar cells, Green et al., 9-16, Solar Energy Materials & Solar Cells 65 (2001).

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