(EN) Provided are a photoelectric conversion element that uses a perovskite compound as a light absorber and exhibits little variation in moisture resistance; a solar cell that uses this photoelectric conversion element; a method for manufacturing a photoelectric conversion element; a surface treatment agent; a surface treatment composition; and a surface treatment fluid. The photoelectric conversion element has, in the indicated sequence, a first electrode having a light absorber-containing photosensitive layer on an electroconductive support; a compound layer containing a surface treatment agentand disposed on the surface of the photosensitive layer; and a second electrode. The light absorber contains a compound having a perovskite crystalline structure that has a cation of a Periodic Tablegroup 1 element or a cationic organic group A, a cation of a metal atom M other than a Periodic Table group 1 element, and an anionic atom or an anion of an atomic group X. The surface treatment agenthas a silyl group.
(ZH) 本发明提供一种将钙钛矿化合物用作光吸收剂的耐湿性偏差小的光电转换元件、使用该光电转换元件的太阳能电池、光电转换元件的制造方法、表面处理剂、表面处理用组合物及表面处理液。光电转换元件依次具有在导电性支撑体上具有包含光吸收剂的感光层的第1电极、设置于感光层表面的包含表面处理剂的化合物层及第2电极,光吸收剂包含具有钙钛矿型晶体结构的化合物,所述具有钙钛矿型晶体结构的化合物具有周期表第1族元素或阳离子性有机基团A的阳离子、周期表第1族元素以外的金属原子M的阳离子及阴离子性原子或原子团X的阴离子,表面处理剂具有甲硅烷基。