Electrophotographic photoreceptor and electrophoto-graphic apparatus equipped with the same

An electrophotographic photosensitive element comprising at least a top surface layer containing a polysilane, wherein the polysilane comprises a cyclic polysilane represented by the following formula (1):

• wherein R1 and R2 are the same or different from each other and each represents a hydrogen atom, a hydroxyl group, an alkyl group, an alkoxy group, an alkenyl group, a cycloalkyl group, a cycloalkyloxy group, a cycloalkenyl group, an aryl group, an aryloxy group, an aralkyl group, an aralkyloxy group, or a silyl group;
• the alkyl group, the alkoxy group, the alkenyl group, the cycloalkyl group, the cycloalkyloxy group, the cycloalkenyl group, the aryl group, thearyloxy group, the aralkylgroup, thearalkyloxy group, or the silyl group may have a substituent;
• “m” denotes an integer of not less than 4;
• and R1 and R2 may vary depending on the coefficient “m”, respectively.