Affiliation: | 1. Institute of Atomic and Molecular Sciences, Academia Sinica, P. O. Box 23-166, Taipei 106, Taiwan;2. National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan;3. Institute of Atomic and Molecular Sciences, Academia Sinica, P. O. Box 23-166, Taipei 106, Taiwan Department Applied Chem. and Inst. Molecular Science, National Chiao Tung University, Hsinchu, 30010, Taiwan |