Optoelectronically-active two-dimensional indium selenide and related layered materials via surfactant-free deoxygenated co-solvent processing
Preparation of two-dimensional indium selenide, other two-dimensional materials and related compositions via surfactant-free deoxygenated co-solvent systems.
1. A composition, comprising:
a layered nanomaterial comprising at least one of mono-, bi- and n-layer nanosheets of said nanomaterial, where n is an integer selected from 3 to 6; and
a deoxygenated medium comprising ethanol and water,
wherein said nanomaterial is selected from Group III monochalcogenides and Group IV monochalcogenides.
2. The composition of claim 1 , being absent of a surfactant.
3. A composition, comprising:
a layered nanomaterial comprising at least one of mono-, bi- and n-layer nanosheets of said nanomaterial, where n is an integer selected from 3 to 6; and
a deoxygenated medium comprising ethanol and water,
wherein said nanomaterial is indium selenide.
4. The composition of claim 3 , wherein said deoxygenated medium is 60:40 (v/v) ethanol:water.
5. The composition of claim 1 , wherein said deoxygenated medium is 60:40 (v/v) ethanol:water.
6. The composition of claim 1 , wherein said deoxygenated medium comprises an Ar-purged co-solvent mixture of ethanol and water.
7. A composition, comprising:
a layered nanomaterial comprising at least one of mono-, bi- and n-layer nanosheets of said nanomaterial, where n is an integer selected from 3 to 6; and
a deoxygenated medium comprising ethanol and water,
wherein said nanomaterial is selected from a transition metal dichalcogenide, hexagonal boron nitride, graphene, and black phosphorus.
8. The composition of claim 6 , wherein said transition metal dichalcogenide is selected from MoS2, MoSe2, MoTe2, WS2 and WSe2.