Porphyrin-TiO2 nanoparticle heterostructure assembly by Langmuir-Blodgett method

J. H. Yang; Y. M. Chen; Y. B. Bai; M. Xian; D. F. Shen; Y. Q. Wang; S. R. Du; R. Lu; T. J. Li; Y. Wu; W. Q. Xu

doi:10.1016/S0968-5677(98)00083-2

Porphyrin-TiO₂ nanoparticle heterostructure assembly by Langmuir-Blodgett method

J. H. Yang, Y. M. Chen, Y. B. Bai, M. Xian, D. F. Shen, Y. Q. Wang, S. R. Du, R. Lu, T. J. Li, Y. Wu, W. Q. Xu

Research output: Contribution to journal › Conference article › peer-review

7 Scopus citations

Abstract

Surface pressure-area (π-A) isotherm characteristics of 5,10,15-(4-hydroxyphenyl)-20-(4-hexadecyloxyphenyl) porphyrin monolayers on both the water and TiO₂ hydrosol subphases, the UV-vis absorption and fluorescence spectra of the monolayers deposited onto CaF₂ substrates are investigated. π-A isotherms find that the porphyrin ring extends to lie more flat on a TiO₂ hydrosol surface than on a water surface. The UV-vis absorption spectra of the deposited monolayers prove that the porphyrin TiO₂ nanoparticle heterostructure assembly is formed, in which the J-aggregated effect of porphyrin is weakened, comparing with that in the monolayer deposited from water subphase. The fluorescence spectra show that the fluorescent emission quenching by the photoinduced electron transfer from the excited porphyrin molecule to TiO₂ nanoparticle, occurs under excitation in the Soret band region of porphyrin.

Original language	English (US)
Pages (from-to)	599-602
Number of pages	4
Journal	Supramolecular Science
Volume	5
Issue number	5-6
DOIs	https://doi.org/10.1016/S0968-5677(98)00083-2
State	Published - 1998
Externally published	Yes
Event	Proceedings of the 7th International Conference on Molecular Electronics and Biocomputing - Nanjing, China Duration: Nov 10 1997 → Nov 12 1997

Publisher link

10.1016/S0968-5677(98)00083-2

Find It

Find It at U of M Libraries

Cite this

@article{1202ee33e57b4a65be69aa0851c9cfb9,

title = "Porphyrin-TiO2 nanoparticle heterostructure assembly by Langmuir-Blodgett method",

abstract = "Surface pressure-area (π-A) isotherm characteristics of 5,10,15-(4-hydroxyphenyl)-20-(4-hexadecyloxyphenyl) porphyrin monolayers on both the water and TiO2 hydrosol subphases, the UV-vis absorption and fluorescence spectra of the monolayers deposited onto CaF2 substrates are investigated. π-A isotherms find that the porphyrin ring extends to lie more flat on a TiO2 hydrosol surface than on a water surface. The UV-vis absorption spectra of the deposited monolayers prove that the porphyrin TiO2 nanoparticle heterostructure assembly is formed, in which the J-aggregated effect of porphyrin is weakened, comparing with that in the monolayer deposited from water subphase. The fluorescence spectra show that the fluorescent emission quenching by the photoinduced electron transfer from the excited porphyrin molecule to TiO2 nanoparticle, occurs under excitation in the Soret band region of porphyrin.",

author = "Yang, {J. H.} and Chen, {Y. M.} and Bai, {Y. B.} and M. Xian and Shen, {D. F.} and Wang, {Y. Q.} and Du, {S. R.} and R. Lu and Li, {T. J.} and Y. Wu and Xu, {W. Q.}",

year = "1998",

doi = "10.1016/S0968-5677(98)00083-2",

language = "English (US)",

volume = "5",

pages = "599--602",

journal = "Supramolecular Science",

issn = "0968-5677",

publisher = "Elsevier BV",

number = "5-6",

note = "Proceedings of the 7th International Conference on Molecular Electronics and Biocomputing ; Conference date: 10-11-1997 Through 12-11-1997",

}

TY - JOUR

T1 - Porphyrin-TiO2 nanoparticle heterostructure assembly by Langmuir-Blodgett method

AU - Yang, J. H.

AU - Chen, Y. M.

AU - Bai, Y. B.

AU - Xian, M.

AU - Shen, D. F.

AU - Wang, Y. Q.

AU - Du, S. R.

AU - Lu, R.

AU - Li, T. J.

AU - Wu, Y.

AU - Xu, W. Q.

PY - 1998

Y1 - 1998

N2 - Surface pressure-area (π-A) isotherm characteristics of 5,10,15-(4-hydroxyphenyl)-20-(4-hexadecyloxyphenyl) porphyrin monolayers on both the water and TiO2 hydrosol subphases, the UV-vis absorption and fluorescence spectra of the monolayers deposited onto CaF2 substrates are investigated. π-A isotherms find that the porphyrin ring extends to lie more flat on a TiO2 hydrosol surface than on a water surface. The UV-vis absorption spectra of the deposited monolayers prove that the porphyrin TiO2 nanoparticle heterostructure assembly is formed, in which the J-aggregated effect of porphyrin is weakened, comparing with that in the monolayer deposited from water subphase. The fluorescence spectra show that the fluorescent emission quenching by the photoinduced electron transfer from the excited porphyrin molecule to TiO2 nanoparticle, occurs under excitation in the Soret band region of porphyrin.

AB - Surface pressure-area (π-A) isotherm characteristics of 5,10,15-(4-hydroxyphenyl)-20-(4-hexadecyloxyphenyl) porphyrin monolayers on both the water and TiO2 hydrosol subphases, the UV-vis absorption and fluorescence spectra of the monolayers deposited onto CaF2 substrates are investigated. π-A isotherms find that the porphyrin ring extends to lie more flat on a TiO2 hydrosol surface than on a water surface. The UV-vis absorption spectra of the deposited monolayers prove that the porphyrin TiO2 nanoparticle heterostructure assembly is formed, in which the J-aggregated effect of porphyrin is weakened, comparing with that in the monolayer deposited from water subphase. The fluorescence spectra show that the fluorescent emission quenching by the photoinduced electron transfer from the excited porphyrin molecule to TiO2 nanoparticle, occurs under excitation in the Soret band region of porphyrin.

UR - http://www.scopus.com/inward/record.url?scp=0032179544&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032179544&partnerID=8YFLogxK

U2 - 10.1016/S0968-5677(98)00083-2

DO - 10.1016/S0968-5677(98)00083-2

M3 - Conference article

AN - SCOPUS:0032179544

SN - 0968-5677

VL - 5

SP - 599

EP - 602

JO - Supramolecular Science

JF - Supramolecular Science

IS - 5-6

T2 - Proceedings of the 7th International Conference on Molecular Electronics and Biocomputing

Y2 - 10 November 1997 through 12 November 1997

ER -

Porphyrin-TiO₂ nanoparticle heterostructure assembly by Langmuir-Blodgett method

Abstract

Publisher link

Find It

Other files and links

Fingerprint

Cite this