R&D Center (W.-H.C., M.-C.T., P.-Y.L., C.-J.L.), Yung Sheng Optical Co, Taichung, Taiwan; and Department of Chemistry (Y.-H.H.H.), Tunghai University, Taichung, Taiwan.

Address correspondence to Yuan-Hao Howard Hsu, Ph.D., Department of Chemistry, Tunghai University, Xitun District, Taichung 40704, Taiwan; e-mail: [email protected]

The authors have no conflicts of interest.

This research was funded by Yung Sheng Optical Co., Ltd.

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