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US 2019/0165290 A1Published application
A light absorbing layer and a photovoltaic device including a light absorbing layer
AssigneeExeger Operations AB
InventorsHenrik Lindström, Giovanni Fili
Life of this patent
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Abstract
The present invention relates to a light absorbing layer (1a) for a photovoltaic device, comprising a plurality of grains (2) of a doped semiconducting material and a charge conductor (3) made of a charge conducting material in physical contact with the grains. The grains are partly covered with the charge conductor (3) so that a plurality of junctions (4) are formed between the grains and the charge conductor. The present invention also relates to a photovoltaic device comprising the light absorbing layer (1a).
Claims21
1-22. (canceled)
A light absorbing layer (1a;
- 1b) for a photovoltaic device comprising:
- a plurality of grains (2) of a doped semiconducting material, wherein the average size of the grains (2) is between 1 μm and 300 μm, and
- a charge conductor (3) made of a solid charge conducting material in physical contact with the grains so that a plurality of junctions (4) is formed between the grains and the charge conductor, and the charge conductor (3) is disposed on the grains (2) and between the grains (2) so that most of the grains are covered with a layer (6) of the charge conductor covering at least 50% of the surface of the grains.
A photovoltaic device (10;
- 30;
- 50) comprising:
- a first conducting layer (16),
- a light absorbing layer (1a, 1b) disposed on the first conducting layer, wherein the light absorbing layer comprises a plurality of grains (2) of a doped semiconducting material and the average size of the grains (2) is between 1 μm and 300 μm,
- a charge conductor (3) made of a solid charge conducting material in physical contact with the grains and disposed on the grains (2) and between the grains (2) so that a plurality of junctions (4) is formed between the grains and the charge conductor, and
- a second conducting layer (18) electrically insulated from the first conducting layer (16), wherein the charge conductor (3) is electrically coupled to the second conducting layer (18) and electrically insulated from the first conducting layer (16), and a portion of the surface of each of the grains (2) is in physical and electrical contact with the first conducting layer and the predominant part of the remaining free surface of each of the grains is covered with the charge conductor.
3 more elements
Dependencies are inferred from the claim text.