1.V. N. Kuznetsov and T. K. Krutitskaya
Nature of color centers in reduced titanium dioxide
Kinetics and Catalysis, Volume 37, Issue 3, Pages 446-449 (May-June 1996)

2.R. Heise, R. Courths, Springer Ser. Surf. Sci. 33 (1993) 91.

3.R. Heise, R. Courths
A photoemission-study of the electronic-structure induced by potassium adsorption on TiO2(110)
Surface Review and Letters, Volume 2, Issue 2, Pages 147-152 (April 1995)

4.H. Poelman and L. Fiermans
Surface Phonon Spectra of Mineral TiO2 Anatase (001) and (100)
Surface Science Spectra, Volume 5, Issue 3, Pages 252-256 (July 1998)
http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=SSSPEN000005000003000252000001&idtype=cvips

5.D. R. Baer, P. Xiong-Skiba, A. N. Shultz, L.-Q. Wang, and M. H. Englehard
Comparison of TiO2(110) Surfaces by XPS: Effects of UV Exposure, Electron Beam and Ion Beam Damage
Surface Science Spectra, Volume 5, Issue 3, Pages 193-202 (July 1998)
http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=SSSPEN000005000003000193000001&idtype=cvips

6.Richard L. Kurtz and V. E. Henrich
UHV-Cleaved Single Crystal Ti2O3 (10-12) by UPS and XPS
Surface Science Spectra, Volume 5, Issue 3, Pages 182-185 (July 1998)
http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=SSSPEN000005000003000182000001&idtype=cvips

7.Richard L. Kurtz and V. E. Henrich
Comparison of Ti 2p Core-Level Peaks from TiO2, Ti2O3, and Ti Metal, by XPS
Surface Science Spectra, Volume 5, Issue 3, Pages 179-181 (July 1998)
http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=SSSPEN000005000003000179000001&idtype=cvips

8.V. E. Henrich
Interaction of O2 with TiOx (x=1.15) by He I UPS
Surface Science Spectra, Volume 5, Issue 3, Pages 176-178 (July 1998)
http://scitation.aip.org/getpdf/servlet/GetPDFServlet?filetype=pdf&id=SSSPEN000005000003000176000001&idtype=cvips

谢谢大家！