A shielding member, wherein the shielding member is formed of at least one of structure which has a non-flat plate shape having an inclined surface, and the inclined surface is located on a side of a substrate support part when the shielding member is disposed in a single crystal growth device, wherein the single crystal growth device comprising: a crystal growth container; a source storage part that is positioned at a lower inner part of the crystal growth container; the substrate support part, wherein the support part is disposed above the source storage part and supports a substrate to make the substrate face the source storage part; and a heating device that is disposed on an outer circumference of the crystal growth container, wherein the shielding member is disposed between the source storage part and the substrate support part, and wherein a single crystal of a source is grown on the substrate by sublimating the source from the source storage part.