Sanyo Electric Co., Ltd.

Kunimoto Ninomiya

Masaki Shima

Katsunobu Sayama

Noriyuki Matsusue

Shigeo Yata

Yasuhiro Yagi

Manabu Sasaki

Hiroshi Ishimaru

A back metal electrode, a bottom cell using microcrystalline silicon for a photoelectric conversion layer, a front cell using amorphous silicon for a photoelectric conversion layer, and a transparent front electrode are formed in this order on a supporting substrate. At least one of the concentration of impurities contained in the front photoelectric conversion layer and the concentration of impurities contained in the bottom photoelectric conversion layer is controlled such that the concentration of impurities in the bottom photoelectric conversion layer is higher than the concentration of impurities in the front photoelectric conversion layer. Impurities do not include a p-type dopant or an n-type dopant but are any one, two, or all of carbon, nitrogen, and oxygen.

Stacked photovoltaic device and method of manufacturing the same

A light emitting display apparatus that achieves color display by using white light as a light source includes a plurality of organic light emitting devices each of which includes an organic light emitting layer that emits the white light. The organic light emitting device is configured so that a resonant wavelength in a thickness direction of the organic light emitting layer is positioned in the blue region of the spectrum. The light emitting display apparatus further includes a plurality of wavelength selection units each of which is provided on a path of the emission of the white light. The wavelength selection unit transmits light of a particular wavelength included in the white light.

Light emitting display apparatus with slight color shifting

A reference output characteristic of a photovoltaic power system at the time of normal operation is obtained in accordance with an installation condition (topography of installation site, meteorological condition, configuration of the system itself, or the like) of the photovoltaic power system, an output characteristic in the photovoltaic power system during operation is actually measured, the obtained reference output characteristic and the measured output characteristic are compared and, based on the comparison result, the normality/abnormality of the output is diagnosed and, at the same time, the cause is diagnosed in the case of abnormality. The reference output characteristic at the time of normal operation can also be obtained based on the measured value of the past output characteristic.

Diagnosis method and diagnosis apparatus of photovoltaic power system

Disclosed is a photovoltaic device comprising on a substrate ( ) a plurality of photovoltaic elements ( ) each composed of a lamination body of a first electrode ( ), a photovoltaic conversion layer ( ), and a second electrode ( ), the thickness of a side end (B) in the first electrode ( ) in the vicinity of a separating trench (S) existing between the first electrode ( ) and the adjacent first electrode ( ) being larger than the thickness of an element region (A) in the first electrode ( ).

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Hirakata, Japan

Kunimoto Ninomiya