Spectral shift formation mechanisms in chemical sensor materials based on photonic crystals

Photonic crystals are fabricated on two different substrates. The first structure consists of a PDMS-covered photonic crystal which is deposited on a PTFE film. The other one consists of a PDMS-covered photonic crystal which is deposited on a glass surface. Diffuse reflective spectra of both structures were analyzed. It was found that spectral shift induced by adding of the organic compound on a PDMS layer occurs only in the first structure. Estimations indicate the connection of diffuse spectral shifts with the effective refractive index and lattice parameter changing.

fotonic crystal, polystyrene microsphere, spectral shift, Bragg reflection.

1. Fenzl C., Hirsch T.,Wolfbeis O.S. // Sensors 2012. V. 12. P. 16954-16963.

2. Ben-Moshe M., Alexeev V.L., Asher S.A. // Anal. Chem. 2006. V. 78. P. 5149-5157.

3. Cui Q., Wang W., Gu B., Liang L. // Macromolecules. 2012. V. 45. P. 8382-8386.

4. Asher S.A., Peteu S.F. Chad E. Reese Ch. E.,· Lin M. X., Finegold D. // Anal. Bioanal. Chem. 2002. V. 373. P. 632-638.

5. Zhang J.-T., Wang L., Lamont D.N., Velankar S.S., Asher A.A. // Angew. Chem. Int. Ed. 2012. V. 51. P. 6117-6120.

6. Maka T., Chigrin D.N., Romanov S.G., C.M. Sotomayor Torres // Progress In Electromagnetics Research. 2003. V. 41. P. 307-335.

7. Brewer D.D., Allen J., Miller M.R., de Santos J.M., Kumar S., Norris D.J., Tsapatsis M., Scriven L.E. // Langmuir. 2008. V. 24. Р. 13683-13693.

8. Kesavamoorthy R., Rajalakshmi M., Babu R.C. А.А. Козлов, С.Д. Абдуллаев, И.А. Грицкова, А.В. Иванов, В.Р. Флид, А.Н. Корешкова // J. Phys.: Condens. Matter. 1989. V. 1. P. 7149-7161.

9. Meseguer F. // Colloids and Surfaces A: Physicochem. Eng. Aspects. 2005. V. 270-271. P. 1-7.

10. Mı´guez H., Lo´pez C., Meseguer F., Blanco A., Va´zquez L., Mayoral R., Ocan˜a M. Forne´s V., Mifsud A. // Appl. Phys. Lett. 1997. V. 71 (9). P. 1148-1150.

11. Luo J., Qu D., Tikhonov A., Bohn J., Asher S.A. // J. Colloid and Interface Science. 2010. V. 345. P. 131-137.

12. Cipelletti L., Ramos L. // J. Phys. Condens. Matter. 2005. V. 17. P. R253- R285.

13. Sciortino F., Tartaglia P. // Adv. Phys. 2005. V. 54. P. 471-524.

14. Wang L., Asher S.A. // Chem Mater. 2009. V. 21(19). P. 4608-4613.

15. Боголицина А.К, Пирогов А.В., Шпигун О.А. // Вестник Моск. ун-та. Сер. 2. Химия. 2006. Т. 47. № 5. С. 339-341.

16. . http://www.chemicalbook.com/ ChemicalProductProperty_EN_CB3696473.htm

17. http://www.sigmaaldrich.com/chemistry/solvents/toluene-center.html