PHOTOELECTRIC CONVERSION ELEMENT, OPTICAL AREA SENSOR USING SAME, IMAGING ELEMENT, AND IMAGING DEVICE

• Main Authors: KAMATANI, Jun, YAMAGUCHI, Tomona, TAKAHIRA, Moe, KAWATA, Isao, SHIOBARA, Satoru, MIYASHITA, Hirokazu, KAJIMOTO, Norifumi, TAKAHASHI, Tetsuo, YAMADA, Naoki, IWAWAKI, Hironobu, ITABASHI, Masumi, NISHIDE, Yosuke, OHRUI, Hiroki, ITO, Yuto
• Format: Patent
• Language: English; French; German
• Published: 18.11.2020
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

Provided is a photoelectric conversion element including an anode, a photoelectric conversion layer that contains a first organic semiconductor, a second organic semiconductor, and a third organic semiconductor, and a cathode. As each of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor, a low-molecular weight organic semiconductor is used. The first organic semiconductor, the second organic semiconductor, and the third organic semiconductor have mass ratios that satisfy the following relationship: the first organic semiconductor ≥ the second organic semiconductor ≥ the third organic semiconductor. Further, when a total amount of the first organic semiconductor, the second organic semiconductor, and the third organic semiconductor is 100 mass%, a content of the second organic semiconductor is 6 mass% or more, and a content of the third organic semiconductor is 3 mass% or more.