NOVELTY - A photoelectric conversion element has a primary electrode (3) coated with electron transport material, a secondary electrode (4) facing the electron transport material of primary electrode, and a hole-transportation layer (8) containing hole-transporting material between the electron transport material of primary electrode, and secondary electrode. The hole-transporting material contains nitrogen-containing compound(s) (I).    USE - Photoelectric conversion element. Uses include but are not limited to solar cell, electronic table-top calculator, wristwatches, mobile telephone, electronic organizer, electronic paper, and auxiliary power supply for lengthening continuous service time of rechargeable and dry cell-type electric appliance.    ADVANTAGE - The photoelectric conversion element has excellent conversion efficiency and stability for long period of time, and is manufactured with high productivity.    DETAILED DESCRIPTION - A photoelectric conversion element has a primary electrode coated with electron transport material, a secondary electrode facing the electron transport material of primary electrode, and a hole-transportation layer containing hole-transporting material between the electron transport material of primary electrode, and secondary electrode. The hole-transporting material contains nitrogen-containing compound(s) of formula (I).    X1=O, S, Se or alkylene;    X2=aryl ring group chosen from aryl or unsaturated heterocyclic ring;and    D1,D2=2-4C alkenyl (optionally substituted by alkyl, alkoxy or amino), 2-4C alkynyl, aryl chosen from (un)substituted, unsaturated heterocyclyl or (un)substituted aryl ring, in which aryl is optionally substituted by 1-4C alkyl, alkenyl or alkynyl.    DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of photoelectric conversion element. (Drawing includes non-English language text)    Substrates (1,2)    Electrodes (3,4)    Hole-transportation layer (8)    Metal oxide layer (11)    Photosensitization compound (12)