Ricoh Company, Ltd.

Shigeyo Suzuki

Yuuji Tanaka

Naomichi Kanei

Tsuyoshi Matsuyama

Tokushige Kino

Tamotsu Horiuchi

Takahiro Ide

Ryota Arai

A photoelectric conversion element may include a first substrate, a first transparent electrode disposed on the first substrate, a hole-blocking layer disposed on the first transparent electrode, an electron-transporting layer that is disposed on the hole-blocking layer and includes an electron-transporting semiconductor on a surface of which a photosensitizing compound is adsorbed, a hole-transporting layer that is connected to the electron-transporting layer and includes a hole-transporting material, and a second electrode disposed on the hole-transporting layer, wherein the photoelectric conversion element includes an output extraction terminal part configured to extract electricity out from the photoelectric conversion element, and the output extraction terminal part is formed with a plurality of micropores piercing through the hole-blocking layer.

Photoelectric conversion element

A photoelectric conversion element is provided. The photoelectric conversion element comprises a substrate, a first electrode, an electron transport layer, a hole transport layer, and a second electrode. The electron transport layer comprises a photosensitizing compound. The hole transport layer comprises a basic compound A and an ionic compound B. The basic compound A is represented by the following formula (1): where each of Rand Rindependently represents an alkyl group or an aromatic hydrocarbon group, or Rand Rshare bond connectivity to form a nitrogen-containing heterocyclic ring; and the ionic compound B is represented by the following formula (2): where Xrepresents a counter cation.

Photoelectric conversion element and solar cell

To provide a photoelectric conversion element, including a first substrate, a first transparent electrode disposed on the first substrate, a hole-blocking layer disposed on the first transparent electrode, an electron-transporting layer that is disposed on the hole-blocking layer and includes an electron-transporting semiconductor on a surface of which a photosensitizing compound is adsorbed, a hole-transporting layer that is connected to the electron-transporting layer and includes a hole-transporting material, and a second electrode disposed on the hole-transporting layer, wherein the photoelectric conversion element includes an output extraction terminal part configured to extract electricity out from the photoelectric conversion element, and the output extraction terminal part is formed with a plurality of micropores piercing through the hole-blocking layer.

A photoelectric conversion element including a first electrode, an electron transport layer on the first electrode, a charge transfer layer, and a second electrode is provided. The electron transport layer includes an electron transport compound, and the electron transport compound carries a compound represented by the following formula (1) and a compound represented by the following formula (2): where each of Xand Xindependently represents oxygen atom, sulfur atom, or selenium atom; Rrepresents methine group; Rrepresents an alkyl group, an aryl group, or a heterocyclic group; each of Rindependently represents an acidic group; m represents an integer of 1 or 2; and each of Zand Zindependently represents a group forming a cyclic structure;R&#x2014;R&#x2014;COOH&#x2003;&#x2003;Formula (2)where Rrepresents an aryl group or a heterocyclic group; and Rrepresents an alkyl group, an alkoxy group, an alkenyl group, an alkylthio group, or an aryl ether group.

Provided is a photoelectric conversion element including: a first electrode; a hole blocking layer; an electron transport layer; a hole transport layer; and a second electrode, wherein the hole transport layer contains a compound represented by general formula (1) below, where in the formula, Rrepresents a methoxy group or an ethoxy group, Rrepresents a hydrogen group or a methyl group, Rrepresents a hydrogen group, a methyl group, or a methoxy group, Rrepresents a methoxy group, and X represents &#x2014;CH&#x2014;, &#x2014;CHCH&#x2014;, &#x2014;O&#x2014;, or &#x2014;C(CH)&#x2014;.

Provided is a photoelectric conversion element including: a first electrode having opaqueness to light and formed of a metal; a hole blocking layer provided on the first electrode; an electron transport layer provided on the hole blocking layer; a hole transport layer provided on the electron transport layer; and a second electrode provided on the hole transport layer and having transmissivity to light, wherein the hole blocking layer contains an oxide of the metal in the first electrode.

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Shizuoka, Japan

Shigeyo Suzuki