Abstract
The deposition rate of by liquid‐phase deposition (LPD) in a solution is significantly increased by 254 nm ultraviolet (UV) illumination. The photoenhancement effect is much stronger at 3.09 M than at 1.34 M concentration. At a constant boric acid concentration the deposition rate of is found to increase linearly with UV light intensity. The photoassisted effect is much stronger at higher boric acid concentration. However, within the UV intensity range studied, the photoeffect on the oxide growth rate is not as strong as other parameters such as concentration and boric acid addition. The UV spectrophotometric results show that the strong UV absorption of the growth solution is associated with but not with , or species in the solution. The observed photoenhancement effect is discussed in the light of the existing LPD models.
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