CHARACTERIZATION OF A HIGHLY PHOTOACTIVE MOLECULAR SEMICONDUCTOR - OXOTITANIUM PHTHALOCYANINE

Ghosez, Philippe; COTE, R.; GASTONGUAY, L.; VEILLEUX, G.; DENES, G.; DODELET, J. P.

doi:10.1021/cm00034a032

No full text

Article (Scientific journals)

CHARACTERIZATION OF A HIGHLY PHOTOACTIVE MOLECULAR SEMICONDUCTOR - OXOTITANIUM PHTHALOCYANINE

Ghosez, Philippe; COTE, R.; GASTONGUAY, L. et al.

1993 • In Chemistry of Materials, 5 (10), p. 1581-1590

Peer Reviewed verified by ORBi

Permalink
https://hdl.handle.net/2268/30859

DOI
10.1021/cm00034a032

Files (0)Send to Details Statistics Bibliography Similar publications

Files

Full Text

No document available.

Send to

RIS BibTex APA Chicago Permalink X Linkedin

Details

Abstract :

[en] Oxotitanium phthalocyanine (OTiPc) thin films have been sublimed at various thicknesses on SnO2 and glass substrates. The morphology, crystallinity, and photoelectrochemical activity of the films have been studied. It was found that the physical and photoelectrochemical properties of the films are greatly influenced by the temperature reached by the substrate during the sublimation. Below 80-degrees-C, amorphous films are obtained while the films are partially crystalline when the substrate is allowed to reach about 140-degrees-C. Amorphous films are made of tightly packed aggregates of circular section while partially crystalline films consists of platelets. All films are porous and permeable to the I3-/I- redox system. The dominant polymorph in partially crystalline films is not the same for all film thicknesses. It is phase IV OTiPc (as deduced by electron diffraction) for films thinner than about 2000 angstrom. On the other hand, for films thicker than about 8000 angstrom, phase I OTiPc becomes the dominant polymorph (as deduced by X-ray diffraction). It is replaced by phase II for 20 000-angstrom-thick films of OTiPc. Partially crystalline films are the only ones to absorb in the near-infrared (NIR) region. This typical absorption is going along with an improvement of the photoactivity of the films. In partially crystalline films, energy is transferred from the amorphous to the crystalline regions where most of the charges are generated. Quantum yields for electron collection per incident photon may reach over 25% in short circuit conditions, at 850 nm, the Q-band absorption maximum for 8000-angstrom-thick films. Those films are phase I OTiPc. Under 35 MW CM-2 polychromatic illumination, the same films are characterized by short circuit photocurrents of 1.5 mA cm-2. A NIR absorbance is an important factor required to obtain a high photoactivity, but it is not the only one. Interaction of OTiPc with oxygen at the purification level of the crude material is very important as well.

Disciplines :

Materials science & engineering

Author, co-author :

Ghosez, Philippe ; Université de Liège - ULiège > Département de physique > Physique théorique des matériaux

COTE, R.

GASTONGUAY, L.

VEILLEUX, G.

DENES, G.

DODELET, J. P.

Language :

English

Title :

CHARACTERIZATION OF A HIGHLY PHOTOACTIVE MOLECULAR SEMICONDUCTOR - OXOTITANIUM PHTHALOCYANINE

Publication date :

1993

Journal title :

Chemistry of Materials

ISSN :

0897-4756

eISSN :

1520-5002

Publisher :

American Chemical Society, Washington, United States - District of Columbia

Volume :

Issue :

Pages :

1581-1590

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 02 December 2009

Statistics

Number of views

146 (4 by ULiège)

Number of downloads

0 (0 by ULiège)

More statistics

Scopus citations^®

Scopus citations^®
without self-citations

OpenCitations

OpenAlex citations

publications

supporting

mentioning

contrasting

Smart Citations

Citing PublicationsSupportingMentioningContrasting

View Citations

See how this article has been cited at scite.ai

scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.

Bibliography

Gregory, P. In High-Technology Application of Organic Colorants; Plenum Press: New York, 1991; p 59.
Loutfy, R. O.; Hor, A. M.; Hsiao, C. K.; Baranyi, G.; Kazmaier, P. Pure Appl. Chem. 1988, 60, 1047.
Sharp, J. H.; Lardon, M. J. Phys. Chem. 1968, 72, 3230.
Enokida, T.; Hirohashi, R.; Mizukami, S. J. Imaging Sci. 1991, 35, 235.
Lee, S. N.; Hoshino, K.; Kokado, H. Denshi Shashin Gakkaishi 1992, 31, 2.
Loutfy, R. O.; Hor, A. M.; Rucklidge, A. J. Imaging Sci. 1987, 31, 31.
Loutfy, R. O.; Hor, A. M.; DiPaola-Baranyi, G.; Hsiao, C. K. J. Imaging Sci. 1985, 29, 116.
Gastonguay, L.; Veilleux, G.; Côté, R.; Saint-Jacques, R. G.; Dodelet, J. P. J. Electrochem. Soc. 1992, 139, 337.
Arishima, K.; Hiratsuka, H., Tate, A.; Okada, T. Appl. Phys. Lett. 1982, 40, 279.
Sims, T. D.; Pemberton, J. E.; Lee, P.; Armstrong, N. R. Chem. Mater. 1989, 1, 26.
Griffiths, C. H.; Walker, M. S.; Goldstein, P. Mol. Cryst. Liq. Cryst. 1976, 33, 149.
Enokida, T.; Hirohashi, R.; Nakamura, T. J. Imaging Sci. 1990, 34, 234.
Hor, A. M.; Popovic, Z. In Proc. 7th. Intl. Cong, on Adv. in Non Impact Printing Techn. 1991, 1, 293.
Tanako, S.; Mimura, Y.; Matsui, N.; Utsugi, K.; Gotoh, T.; Tani, C.; Tateishi, K.; Ohde, N. J. Imaging Technol. 1991, 17, 46.
Fujimaki, Y.; Tadokoro, H.; Oda, Y.; Yoshioka, H.; Homma, T.; Moriguchi, H.; Watanabe, K.; Konishita, A.; Hirose, N.; Itami, A.; Ikeuchi, S. J. Imaging Technol. 1991, 17, 202.
Kanemitsu, Y.; Yamamoto, A.; Funuda, H.; Masumoto, Y. J. Appl. Phys. 1991, 69, 7333.
Block, B. P.; Meloni, E. G. Inorg. Chem. 1965, 4, 111.
Côté, R.; Denès, G.; Gastonguay, L.; Dodelet, J. P. Proc. SPIE—Int. Soc. Opt. Eng. (Photovoltaics, Photochem. Photoelectrochem.) 1992, 1729, 222.
van Ewyk, R. L.; Chadwick, A. V.; Wright, J. D. J. Chem. Soc., Faraday Trans. 1 1980, 76, 2194.
Collins, R. A.; Mohammed, K. A. J. Phys. D: Appl. Phys. 1988, 21, 154.
Martin, M.; André, J. J.; Simon, J. J. Appl. Phys. 1983, 54, 2792.
Dahlberg, S. C.; Musser, M. E. J. Chem. Phys. 1980, 72, 6706.
Lyons, L. E. J. Chem. Soc. 1957, 5001.
Wright, J. D. Prog. Surf. Sci. 1989, 31, 1.
Day, P.; Price, M. G. J. Chem. Soc. A 1969, 236.
Saito, T.; Kawanishi, T.; Kakuta, A. Jpn. J. Appl. Phys. 1991, 30, L1182.
Bahra, G. S.; Chadwick, A. V.; Couves, J. W.; Wright, J. D. J. Chem. Soc, Faraday Trans 1 1989, 85, 1979.
Couves, J. W.; Tamizi, M.; Wright, J. D. J. Chem. Soc, Faraday Trans. 1990, 86, 115.
Yasunaga, H.; Kojima, K.; Yohda, H.; Takeya, K. J. Phys. Soc. Jpn. 1974, 37, 1024.
Hassan, A. K.; Gould, R. D. J. Phys. Condens. Matter 1989, 1, 6679.
Pack, J. L.; Phelps, A. V. J. Chem. Phys. 1966, 44, 1870.
Hassan, A. K.; Gould, R. D. Int. J. Electronics 1990, 69, 11.
Waite, S.; Pankow, J.; Collins, G.; Lee, P., Armstrong, N. R. Langmuir 1989, 5, 797.
Musser, M. E.; Dahlberg, S. C. Surf. Sci. 1980, 100, 605.
Wilson, A.; Collins, R. A. Phys. Status Solidi A 1986, 98, 633.
Archer, P. B. M.; Chadwick, A. V.; Miasik, J. J.; Tamizi, M.; Wright, J. D. Sensors Actuators 1989, 16, 379.
Mockert, H.; Schmeisser, D.; Göpel, W. Sensors Actuators 1989, 19, 159.
Popovic, Z. D. J. Chem. Phys. 1982, 77, 498.
Klofta, T. J.; Sims, T. D.; Pankow, J. W.; Danziger, J.; Nebesny, K. W.; Armstrong, N. R. J. Phys. Chem. 1987, 91, 5651.
Klofta, T. J.; Danziger, J.; Lee, P.; Pankow, J.; Nebesny, K. W.; Armstrong, N. R. J. Phys. Chem. 1987, 91, 5646.
Gastonguay, L.; Veilleux, G.; Côté, R.; Saint-Jacques, R. G.; Dodelet, J. P. Chem. Mater. 1993, 5, 381.
Hiller, W.; Strähle, J.; Kobel, W.; Hanack, M. Z. Kristallogr. 1982, 159, 173.
Bluhm, T.; Mayo, J.; Hamer, G.; Martin, T. Proc. SPIE—Int. Soc. Opt. Eng. (Color Hard Copy Graphic Arts) 1992, 1670, 160.
Oka, K.; Okada, O.; Nakada, K. Jpn. J. Appl. Phys. 1992, 31, 2181.
Guay, D.; Tourillon, G.; Gastonguay, L.; Dodelet, J. P.; Nebeany, K. W.; Armstrong, N. R.; Garrett, R. J. Phys. Chem. 1991, 95, 251.
Edwards, L.; Gouterman, M. J. Mol. Spectrosc. 1970, 33, 292.
Harazone, T.; Takagishi, L.; Matsuzaki, T. Anal. Sci. 1991, 7 (Suppl. Proc. Int. Congr. Anal. Sci. 1991, Part 2), 1301.
Kasha, M. In Spectroscopy of the excited state; Di Bartolo, B., Ed.; Plenum Press: New York, 1976; p 337.
Kasha, M.; Rawls, H.R.; Ashraf El-Bayoumi, M. Pure Appl. Chem. 1965, 11, 371.
McRae, E. G.; Kahsa, M. In Physical Processes in Radiation Biology; Academic Press: New York, 1964; p 23.
Kasha, M.; Ashraf El-Bayoumi, M.; Rhodes, W. J. Chim. Phys. 1961, 58, 916.
Danziger, J.; Dodelet, J. P.; Armstrong, N. R. Chem. Mater. 1991, 3, 812.
Tamizhmani, G.; Dodelet, J. P.; Côté, R.; Gravel, D. Chem. Mater. 1991, 3, 1046.

Similar publications

Sorry the service is unavailable at the moment. Please try again later.

Name	Provider / Domaine	Expiration	Description
JSESSIONID	Oracle Corporation www.uliege.be	Session	General purpose platform session cookie, used by sites written in JSP. Usually used to maintain an anonymous user session by the server.
CookieScriptConsent	CookieScript .uliege.be	1 year	This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.

Name	Provider / Domaine	Expiration	Description
_pk_id	InnoCraft Ltd .uliege.be	1 year	Used to store a few details about the user such as the unique visitor ID
_pk_ses	InnoCraft Ltd .uliege.be	30 minutes	Short lived cookies used to temporarily store data for the visit
_pk_ref	InnoCraft Ltd .uliege.be	6 months	Used to store the attribution information, the referrer initially used to visit the website