A
chromophore having a down-conversion capability, an encapsulant film, glass, and a photovoltaic module. The
chromophore has a
structural formula as shown in formula (I-1) and / or formula (I-2), wherein n is any integer from 0 to 100; E0 comprises any one of an alkynyl group, an alkenyl group, a silyl, a silaphenyl group, and a silenyl group; Ex is selected from a group consisting of an optionally substituted silyl group, a
silicon-containing heterocyclic group, a
silicon-containing benzofused cyclic group, an alkenyl group, a heteroalkyl group, an
aryl group, a heteroaryl group, an amino group, an acylamino group, a cyclic acylamino group, a cyclic
imide group, an
alkoxy group, a carboxyl group, and a
carbonyl group; E2 is selected from a group consisting of an optionally substituted
silylene, silenylene, an alkylene group, an alkenylene group, an oxy group, a
silicon-containing
arylene group, a heteroarylene group, carbonyl, and ester; Gx is independently selected from a group consisting of an optionally substituted alkylene group, a
silylene group, an optionally substituted silicon-containing alkenylene group, a silicon-containing alkynylene group, an alkenylene group, an optionally substituted alkynylene group, an optionally substituted
arylene group, and an optionally substituted silicon-containing
arylene group; and A1, and A2 are each independently selected from a substituted
aryl group and a substituted heteroaryl group; or A1 and A2 are each independently selected from a substituted silicon-containing heterocyclic group, a silicon-containing benzofused cyclic group, and an optionally substituted silyl group.