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We utilize a combined technology to grow relatively pure K 2 Al 2 B 2 O 7 crystals without sodium and UV absorptions aroused by Fe 3+ ions. It is found that under reducing atmosphere, iron impurities can no longer substitute into the Al 3+ sites in the crystal lattice. Thus, the as-grown crystals are free from the abnormal UV absorption from 200nm to...
In this paper, large and transparent K 2 Al 2 B 2 O 7 (KABO) crystals were grown using NaF as a flux in a non-oxygen atmosphere for the first time. Through optimization of the growth condition, bulk KABO crystal has been obtained with good quality. The transmittance spectrum shows that the abnormal UV absorption from 200 to 300nm of KABO crystals could be effectively...
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