| 摘要 |
Disclosed are a coating material for absorbing radiant heat, forming method thereof, a radiant heat cooling apparatus using the same, and an apparatus for growing a silicon single crystal using the same. The radiant heat absorbing coating material includes 10~15 wt/% of silica gel, 5~10 Wt/% of graphite powder, and 75~85 wt/% of IPA, and is formed by agitation. An ingot growing apparatus includes a quartz crucible, a heating element, a crystal pulling device, a heat shield for maintaining a constant temperature distribution in the crystal growing system, and a cooling device, wherein the quartz crucible, heating element, crystal pulling device, heat shield, and cooling device are installed inside a sealed furnace or a sealed crystal growing apparatus, wherein the silicon single crystal growing apparatus further comprises a crystal cooling means for cooling the growing crystal by absorbing radiant heat radiating from the silicon crystal, and wherein the crystal cooling means includes a circulating cooling pipe inside and an ingot radiant heat absorbing layer coated on an outer surface of the cooling means.
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