摘要:
The object is to improve the conversion efficiency of a photoelectric conversion device. This object can be achieved by a photoelectric conversion device including an electrode and a semiconductor layer which is provided on one main surface of the electrode and contains a I-III-VI group compound semiconductor, wherein the semiconductor layer includes a connection layer that is located at a position on the one main surface side of the electrode and has a tendency that, the closer to the one main surface, the greater a quotient obtained by dividing an amount of substance of a I-B group element by an amount of substance of a III-B group element becomes.
摘要:
The object is to improve the conversion efficiency of a photoelectric conversion device. This object can be achieved by a photoelectric conversion device including an electrode and a semiconductor layer which is provided on one main surface of the electrode and contains a I-III-VI group compound semiconductor, wherein the semiconductor layer includes a connection layer that is located at a position on the one main surface side of the electrode and has a tendency that, the closer to the one main surface, the greater a quotient obtained by dividing an amount of substance of a I-B group element by an amount of substance of a III-B group element becomes.
摘要:
It is aimed to provide a photoelectric conversion device having high adhesion between a light-absorbing layer and an electrode layer as well as high photoelectric conversion efficiency. In order to achieve this object, the photoelectric conversion device includes a first layer and a second layer provided on the first layer. Further, in the photoelectric conversion device, the first layer includes an electrode layer, the second layer includes a light-absorbing layer including a group I-III-VI compound semiconductor, the light-absorbing layer includes a first region and a second region located farther from the first layer than the first region, and an average grain diameter of crystal grains in the second region is larger than an average grain diameter of crystal grains in the first region.
摘要:
It is an object to provide a photoelectric conversion device with high photoelectric conversion efficiency that improves reliability by increasing contact force between a light absorbing layer and an electrode layer. The photoelectric conversion device includes an electrode layer, and a light absorbing layer located on the electrode layer. The light absorbing layer contains a compound semiconductor. The light absorbing layer comprises a first layer close to the electrode layer and a second layer located on the first layer. The first layer has a void ratio lower than that of the second layer.
摘要:
It is an object to provide a photoelectric conversion device with high photoelectric conversion efficiency that improves reliability by increasing contact force between a light absorbing layer and an electrode layer. The photoelectric conversion device includes an electrode layer, and a light absorbing layer located on the electrode layer. The light absorbing layer contains a compound semiconductor. The light absorbing layer comprises a first layer close to the electrode layer and a second layer located on the first layer. The first layer has a void ratio lower than that of the second layer.
摘要:
A photoelectric conversion device 1 comprises a laminated body comprising a conducting substrate 2, and an opposing electrode layer 3, a porous spacer layer 5 containing an electrolyte 4, a porous semiconductor layer 7 that adsorbs a dye 6 and contains the electrolyte 4 and a light-transmitting conductive layer 8 respectively laminated in this order on the conducting substrate 2. Consequently, the thickness of the electrolyte layer determined previously by a gap between two substrates is allowed to be determined according to the thickness of a spacer layer containing an electrolyte 4, and thus the electrolyte layer can be made both thin and uniform, and the conversion efficiency and reliability can be improved.
摘要:
A photoelectric converter is disclosed. The photoelectric converter includes an electrode layer and a semiconductor layer. The semiconductor layer is on the electrode layer. The semiconductor layer contains a chalcopyrite compound semiconductor. The semiconductor layer comprises a plurality of sub-layers. The plurality of sub-layers comprises a first sub-layer. The first sub-layer is located closest to the electrode layer. The first sub-layer has a first thickness smaller than an average thickness of the rest of the plurality of sub-layers.
摘要:
It is aimed to provide a photoelectric conversion device having high adhesion between a first semiconductor layer and an electrode layer as well as high photoelectric conversion efficiency. A photoelectric conversion device comprises an electrode layer, a first semiconductor layer located on the electrode layer and comprising a chalcopyrite-based compound semiconductor of group I-III-VI and oxygen, and a second semiconductor layer located on the first semiconductor layer and forming a pn junction with the first semiconductor layer. In the photoelectric conversion device, the first semiconductor layer has a higher molar concentration of oxygen in a part located on the electrode layer side with respect to a center portion in a lamination direction of the first semiconductor layer than a molar concentration of oxygen in the whole of the first semiconductor layer.
摘要:
This invention provides a photoelectric transducer comprising a light transparent substrate, a light transparent conductive layer provided on the light transparent substrate and a porous semiconductor layer provided on the light transparent conductive layer. The porous semiconductor layer can absorb coloring matter and contains an electrolyte. The photoelectric transducer further comprises a porous spacer layer containing an electrolyte provided on the porous semiconductor layer and a counter electrode layer provided on the porous spacer layer. According to the above constitution, the thickness of the electrolyte layer is determined by the thickness of the spacer layer containing the electrolyte unlike the prior art technique in which the thickness of the electrolyte layer is determined by spacing between two substrates. Accordingly, the electrolyte layer can be formed thinly and evenly and can enhance the photoelectric conversion efficiency and the reliability.
摘要:
It is an object to provide a photoelectric conversion device with high photoelectric conversion efficiency. The photoelectric conversion device includes an electrode layer, and a light absorbing layer located on the electrode layer. The light absorbing layer is comprised of a plurality of stacked semiconductor layers containing a chalcopyrite-based compound semiconductor. The semiconductor layers contain oxygen. A molar concentration of the oxygen in surfaces and their vicinities of the semiconductor layers where the semiconductor layers are stacked on each other is higher than average molar concentrations of the oxygen in the semiconductor layers.