Photostability of lasers based on pyrromethene 567 in liquid and solid-state host media

Ahmad, Mohammad; King, Terence A.; Ko, Do‐Kyeong; Heon, Byung; Lee, Jongmin

doi:10.1016/s0030-4018(02)01179-3

Cited by 58 publications

(18 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast with the results in polar acetonitrile, a 14% decrease in PM597 absorbance was observed in n-hexane. This is consistent with previous photostability studies [11]. The photostability of pyrromethene dyes in non-polar solvents exceeds that of the polar solvents.…”

Section: Photostability Of Pm567 and Pm597 In Solutionsupporting

confidence: 93%

The photodegradation of pyrromethene 567 and pyrromethene 597 by pyrromethene 546

Tanaka

Sisk

2005

Journal of Photochemistry and Photobiology A: Chemistry

View full text Add to dashboard Cite

The photo-destabilizing action of 1,3,5,7,8-pentamethylpyrromethene difluoroborate complex (PM546) on 1,3,5,7,8-pentamethyl-2,6-diethylpyrromethene difluoroborate complex (PM567) and 1,3,5,7,8-pentamethyl-2,6-di-t-butylpyrromethene difluoroborate complex (PM597) has been investigated. Acetonitrile solutions of PM567 and PM597 demonstrated accelerated photodegradation upon the addition of PM546; whereas the photodegradation rate of the corresponding n-hexane solutions remained invariant with respect to PM546 addition. The enhanced photodegradation rate is explained by electron transfer from PM567 and PM597 to

show abstract

Section: Photostability Of Pm567 and Pm597 In Solutionsupporting

confidence: 93%

The photodegradation of pyrromethene 567 and pyrromethene 597 by pyrromethene 546

Tanaka

Sisk

2005

Journal of Photochemistry and Photobiology A: Chemistry

View full text Add to dashboard Cite

show abstract

“…[48,49] They are used in photostability research and FCS applications. [25,28,44,[49][50][51] The chosen members of one dye family are structurally nearly identical, with very similar excited-state lifetimes but different intersystem crossing (ISC) yields. Thus, the only variation within one dye family lies in their intensity-dependent triplet population.…”

Section: à2mentioning

confidence: 99%

Comparative Photostability Studies of BODIPY and Fluorescein Dyes by Using Fluorescence Correlation Spectroscopy

2008

View full text Add to dashboard Cite

In single-molecule applications, the photostability of fluorescent molecules is a key parameter. We apply fluorescence correlation spectroscopy to compare the photostability of four fluorescein and four borondipyrromethene (BODIPY) dyes of similar structure but different triplet yields. The latter class of dyes are more stable. In the kinetic analysis the, diffusion and photobleaching are treated as competitive processes. Corrections, which account for saturation and for experimental artefacts, are achieved solely by using experimental data. Photobleaching is found to occur mainly through the first excited singlet state S(1), in contrast to previous findings.

show abstract

“…These dyes emit in the green-red region of the electromagnetic spectrum with high fluorescence quantum yields, owing to their low triplet absorption losses at the fluorescence emission wavelengths, 1-10 and have demonstrated efficient laser emission both in liquid 2, 7,9,11,12 and solid state, [13][14][15][16][17][18][19][20][21][22][23][24][25] although they are sensitive to photoreactions with oxygen, which makes them relatively unstable in airsaturated solutions. 14,26 Studies carried out on some commercial PM dyes had shown that their photophysical and lasing properties strongly depend on their molecular structure 5,8,27,28 and that adequate substituents in the molecular core can enhance their laser action.…”

Section: Introductionmentioning

confidence: 99%

Bichromatic laser emission from dipyrromethene dyes incorporated into solid polymeric media

Álvarez

Costela

García‐Moreno

et al. 2007

Journal of Applied Physics

View full text Add to dashboard Cite

Bichromatic laser emission from dipyrromethene-based solid-state dye lasers is reported. The dependence of this dual emission on different factors and its origin and causes are discussed in the light of different models proposed in the literature. Our experimental results indicate that the long-wavelength emission can be explained in terms of reabsorption/reemission effects and inhomogeneous broadening of the S 0 -S 1 transition. The short-wavelength emission corresponds to the usual S 0 -S 1 transition and dominates at low dye concentration.

show abstract

Photostability of lasers based on pyrromethene 567 in liquid and solid-state host media

Cited by 58 publications

References 30 publications

The photodegradation of pyrromethene 567 and pyrromethene 597 by pyrromethene 546

The photodegradation of pyrromethene 567 and pyrromethene 597 by pyrromethene 546

Comparative Photostability Studies of BODIPY and Fluorescein Dyes by Using Fluorescence Correlation Spectroscopy

Bichromatic laser emission from dipyrromethene dyes incorporated into solid polymeric media

Contact Info

Product

Resources

About