Phases and Third-Order Optical Nonlinearities in Tetravalent Metallophthalocyanine Thin Films

Hosoda, Masahiro; Wada, Takehiko; Yamada, Akira; Garito, A. F.; Sasabe, Hiroyuki

doi:10.1143/jjap.30.l1486

Cited by 93 publications

(48 citation statements)

References 10 publications

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“…Some of these Pc derivatives exhibit solubility in excess of 10 wt Differential scanning calorimetry (DSC) was % ( Table 11). For instance, the solubility of comused to study the kinetics of curing for all Pc films.…”

Section: Resultsmentioning

confidence: 99%

Thin film processing of axially modified phthalocyanine derivatives

Mandal

Sinha

Kamath

1996

J. Polym. Sci. A Polym. Chem.

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A new class of hydroxyl terminated silicon phthalocyanine (SiPc) derivatives was prepared by capping dihydroxy SiPc with a variety of compounds containing two or more hydroxyl groups. The unique feature of these polyhydroxy SiPc derivatives is their function as crosslinkers that allows their processability into polyurethane films on reacting with isophorone diisocyanate. The films possess high impact resistance, thermostability at 125°C for over 10 h, and low absorption in the visible region. Solid polymeric films incorporating over 20% (w/w) of Pc rings were prepared without phase segregation. The kinetic parameters of polymerization, such as reaction conversion versus time and temperature, heat of reaction (ΔH), activation energy (ΔE), and reaction order (n) were investigated. Some of the polyhydroxy SiPc derivatives exhibit very high solubility in common organic solvents and possess adequate optical transparency for use as nonlinear optical materials in vision protection against laser light. © 1996 John Wiley & Sons, Inc.

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Section: Resultsmentioning

confidence: 99%

Thin film processing of axially modified phthalocyanine derivatives

Mandal

Sinha

Kamath

1996

J. Polym. Sci. A Polym. Chem.

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“…The noise might come from the fluctuations of the laser and detection systems and from the polymer thin film itself (non-crystalline and polycrystalline structures, fluctuation of thickness and surface roughness, et al). In fact, even for vacuum deposited organic films with perfect crystal structure, Maker fringe pattern could not be observed clearly when the film is not thick enough 9) . In these cases, we could still calculate or estimate the film χ (3) magnitudes from the maximum value in the envelope of the Maker fringe patterns by using equation (1) or (2).…”

Section: Third Harmonic Generation From Rr-p3ht Thin Filmsmentioning

confidence: 97%

Third-order Nonlinear Optical Properties of Regioregular Poly(3-Hexylthiophene) Thin Films on Quartz Glasses Modified by Hexamethyldisilazane

Wang

Ochiai

Yamada

et al. 2008

The Review of Laser Engineering

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Regioregular poly(3-hexylthiophene) thin films were prepared on fused quartz glasses by spin-coating and drop-casting from the chloroform solutions. The effect of surface modification of quartz glass by hexamethyldisilazane (HMDS) on the RR-P3HT film structures was investigated. Film structures and morphologies were characterized by UV-visible absorption spectra, out-of-plane X-ray diffraction (XRD) and atomic force microscopy (AFM). The third-order nonlinear optical (NLO) susceptibilities χ (3) (-3ω; ω, ω, ω) of the RR-P3HT films were determined by the third harmonic generation (THG) technique with an incident wavelength of 1064 nm. The drop-cast film shows enhanced χ (3) of about three times of that of the spin-coated one, and HMDS treatment can increase the χ (3) further to about 30 percent higher than the untreated one, keeping all the film thicknesses around 140 nm These results revealed the deposition method and surface modification effects on the RR-P3HT film structures, and the importance of higher ordering (enhanced inter-molecular interactions through π-π stacking) and increased crystallinity to the enhancement of the χ (3) of the polymeric films for their applications in NLO devices.

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“…We also thank Dr. Masato Tomita for his discussions about TEM. highest third-order nonlinear-optical susceptibility x (3) among organic materials, even in the non-resonant condition. These areas have been summarized by N a l~a .…”

Section: Ntt Integrated Information and Energy Systems Laboratoriesmentioning

confidence: 99%

Organic molecular beam deposition of metallophthalocyanines for opto‐electronics applications

Yamashita

Hayashi

1996

Advanced Materials

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Organic molecular beam deposition (OMBD) enables the deposition of various materials under optimum conditions. This review is restricted to films of metallophthalocyanines (see Figure) and related compounds, which are of interest for opto‐electronic applications. Following a description of typical apparatus and conditions, epitaxially grown pseudomorphic films, films with bulk structure, and multilayers are reviewed. magnified image

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Phases and Third-Order Optical Nonlinearities in Tetravalent Metallophthalocyanine Thin Films

Abstract: The third-order optical susceptibilities χ1111 (3)(-3ω; ω, ω, ω)s f o r t w o d i f f e r e n t p h a s e s … Show more

Cited by 93 publications

References 10 publications

Thin film processing of axially modified phthalocyanine derivatives

Thin film processing of axially modified phthalocyanine derivatives

Third-order Nonlinear Optical Properties of Regioregular Poly(3-Hexylthiophene) Thin Films on Quartz Glasses Modified by Hexamethyldisilazane

Organic molecular beam deposition of metallophthalocyanines for opto‐electronics applications

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