PHOTOELECTRIC ELEMENT COMPRISING ORGANIC THIN FILM HAVING MULTILAYERED STRUCTURE, PROCESS FOR PRODUCING THE SAME, AND SOLAR CELL

摘要

By multiplexing light-harvesting layer and complexing with hole transport films or electron transport films, a photoelectric device and a solar cell exhibiting highly efficient electricity generation property can be obtained. A composite layer (11) in a photoelectric device (31) includes: a 1st light-harvesting film (A 1 ) that includes photosensitive groups which absorb light energy and are excited thereby; a 1st hole transport film (P 1 ) containing electron-donating groups that donate electrons to photosensitive groups; an nth light-harvesting film (A n ) that includes photosensitive groups which absorb light energy that has passed through an (n-1) th light-harvesting film (A n-1 ) and are excited thereby; an nth hole transport film (P n ) that is sandwiched between the nth light-harvesting film (An) and the (n-1) th light-harvesting film (A n-1 ) and includes electron-donating groups for donating electrons to the excited photosensitive groups; light-harvesting film connectors (41) that connect the (n-1)th light-harvesting film (A n-1 ) and the nth light-harvesting film (A n ); and hole transport film connectors (42) that connect an (n-1)th hole transport film (P n-1 ) and the nth hole transport film (P n ).