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    • 9. 发明申请
    • PHOTOELECTRIC CONVERSION DEVICE, METHOD FOR PRODUCING THE SAME, AND SOLAR BATTERY
    • 光电转换装置,其制造方法和太阳能电池
    • US20120180870A1
    • 2012-07-19
    • US13499114
    • 2010-09-30
    • Kana Yamamoto
    • Kana Yamamoto
    • H01L31/0264
    • H01L31/18H01L31/0322H01L31/065H01L31/0749Y02E10/541Y02P70/521
    • A photoelectric conversion device includes a layered structure formed on a substrate including a first electrode, a photoelectric conversion semiconductor layer and a second electrode, the photoelectric conversion semiconductor layer being mainly composed of a compound semiconductor containing group Ib, group IIIb and group VIb elements, and containing an alkaline(-earth) metal, wherein the alkaline(-earth) metal concentration distribution in the photoelectric conversion layer in the thickness direction includes a valley with the lowest alkaline(-earth) metal concentration and an area with an alkaline(-earth) metal concentration higher than that at the valley, the area being nearer to the substrate from the valley, and wherein Expressions (1) and (2) below are satisfied: 1.0×10−6≦a [mol/cc]≦2.0×10−5  (1) and 1.5≦b/a≦4.0  (2), wherein “a” represents the alkaline(-earth) metal concentration at the valley, and “b” represents the highest alkaline(-earth) metal concentration at a position nearer to the substrate from the valley.
    • 光电转换装置包括形成在包括第一电极,光电转换半导体层和第二电极的基板上的分层结构,该光电转换半导体层主要由含有Ib族,IIIb族和VIb族元素的化合物半导体组成, 并且含有碱土金属(-earth)金属,其中光电转换层中的厚度方向上的碱(( - ))金属浓度分布包括具有最低碱性(-earth)金属浓度的谷和具有碱性( - 土壤)金属浓度高于山谷,该区域从谷地更接近基底,并且其中满足以下表达式(1)和(2):1.0×10-6≦̸ a [mol / cc]≦̸ 2.0×10-5(1)和1.5≦̸ b / a≦̸ 4.0(2),其中“a”表示谷底部的碱性(-earth)金属浓度,“b”表示最高的碱 h)从山谷更靠近基底的位置处的金属浓度。