An organic thin film transistor containing a compound represented by the following formula in a semiconductor active layer: wherein in the formula, A 1 and A 2 each independently represent a sulfur atom, an oxygen atom or a selenium atom; and R 1 to R 6 each independently represent a hydrogen atom or a substituent selected from a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, a cyano group, a hydroxyl group, a nitro group, a carboxyl group, an alkoxy group, an aryloxy group, a silyloxy group, a heterocyclic oxy group, an acyloxy group, a carbamoyloxy group, an alkoxycarbonyloxy group, an aryloxycarbonyloxy group, an amino group, an ammonio group, an acylamino group, an aminocarbonylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfamoylamino group, an alkyl- or arylsulfonylamino group, a mercapto group, an alkylthio group, an arylthio group, a heterocyclic thio group, a sulfamoyl group, a sulfo group, an alkyl- or arylsulfinyl group, an alkyl- or arylsulfonyl group, an acyl group, an aryloxycarbonyl group, an alkoxycarbonyl group, a carbamoyl group, an aryl- or heterocyclic azo group, an imide group, a phosphino group, a phosphinyl group, a phosphinyloxy group, a phosphinylamino group, a phosphono group, a silyl group, a hydrazino group, a ureido group, a boronic acid group (-B 2), a phosphato group (-PO 2) and a sulphato group (-OSO 3 H), provided that at least one of R 1 to R 6 represents a substituent represented by the following formula: Formula *-L-R wherein in the formula, * represents a position bonded to a naphthalene ring in the formula, or bonded to a ring containing A 1 or a ring containing A 2; L represents a divalent linking group represented by any one of the following formulae (L-1) to (L-10), or a divalent linking group consisting of 2 or more divalent linking groups each represented by any one of the following formulae (L-1) to (L-10) in which the 2 or more divalent linking groups are bonded sequentially; and R represents a hydrogen atom, an alkyl group optionally substituted by halogen, an oligooxyethylene group having a repeating number of an oxyethylene unit of 2 or more, an oligosiloxane group having 2 or more silicon atoms, or a substituted or unsubstituted trialkylsilyl group, provided that R represents a hydrogen atom only when L is represented by any one of the formulae (L-1) to (L-3) and (L-8) to (L-10), and R represents a substituted or unsubstituted trialkylsilyl group only when L bonded to R is a divalent linking group represented by the following formula (L-3); wherein in the formulae (L-1) to (L-10), the wavy line represents a position bonded to any one of a naphthalene ring, a ring containing A 1 and a ring containing A 2; and * represents a position bonded to R in the formula; in the formula (L-8), m represents 4; in the formulae (L-9) and (L-10), m represents 2; in the formulae (L-1), (L-2), (L-8), (L-9) and (L-10), R' each independently represents a hydrogen atom or a substituent selected from a halogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, a cyano group, a hydroxyl group, a nitro group, a carboxyl group, an alkoxy group, an aryloxy group, a silyloxy group, a heterocyclic oxy group, an acyloxy group, a carbamoyloxy group, an alkoxycarbonyloxy group, an aryloxycarbonyloxy group, an amino group, an ammonio group, an acylamino group, an aminocarbonylamino group, an alkoxycarbonylamino group, an aryloxycarbonylamino group, a sulfamoylamino group, an alkyl- or arylsulfonylamino group, a mercapto group, an alkylthio group, an arylthio group, a heterocyclic thio group, a sulfamoyl group, a sulfo group, an alkyl- or arylsulfinyl group, an alkyl- or arylsulfonyl group, an acyl group, an aryloxycarbonyl group, an alkoxycarbonyl group, a carbamoyl group, an aryl- or heterocyclic azo group, an imide group, a phosphino group, a phosphinyl group, a phosphinyloxy group, a phosphinylamino group, a phosphono group, a silyl group, a hydrazino group, a ureido group, a boronic acid group (-B 2), a phosphato group (-PO 2) and a sulphato group (-OSO 3 H), provided that, in the formulae (L-1) and (L-2), R' each independently may form a condensed ring with R bonded to L.