SOLAR CELL AND METHOD OF MANUFACTURING THE SAME

• Main Authors: OKU TAKEO, OISHI YUYA, SUZUKI ATSUSHI
• Format: Patent
• Language: English; Japanese
• Published: 02.02.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

PROBLEM TO BE SOLVED: To provide a solar cell which can be easily manufactured as compared with a conventional solar cell and has improved conversion efficiency and a manufacturing method thereof.SOLUTION: In a solar cell 10, a first electrode 14, an electron transport layer 16, a photoelectric conversion layer 18, a layer 20 of a compound having a perovskite structure, a hole transport layer 22, and a second electrode 24 are sequentially stacked on a substrate 12. The photoelectric conversion layer 18 is a layer in which an n-type semiconductor and a p-type semiconductor are bonded. The n-type semiconductor is mesoporous and has an irregularly shaped gap. A p-type semiconductor enters the gap. Horizontal element doping is carried out at the Pb atom position of the perovskite structure compound.SELECTED DRAWING: Figure 1 【課題】従来に比べて簡易に製造でき、変換効率を高めた太陽電池およびその製造方法を提供する【解決手段】太陽電池１０は、基板１２の上に第１電極１４、電子輸送層１６、光電変換層１８、ペロブスカイト構造の化合物の層２０、正孔輸送層２２、第２電極２４が順番に積層されている。光電変換層１８は、ｎ型半導体とｐ型半導体とが接合された層である。ｎ型半導体がメソポーラスになっており、不規則な形状の隙間を有する。その隙間にｐ型半導体が入り込んでいる。ペロブスカイト構造の化合物のＰｂ原子位置に異元素ドーピングをおこなう。【選択図】図１