2015
DOI: 10.1179/2055031615y.0000000004
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Tunable wavelength light emission and amplification in Rhodamine 6G aggregates

Abstract: In this work, the authors present experimental results of tunable amplified spontaneous emission (ASE) and random lasing (RL) emission wavelength, which mechanism is based on Rhodamine 6G (Rh6G) aggregates formation. Dye concentration controlled light amplification has been applied for RL and ASE on Rhodamine-doped biopolymeric layers like modified deoxyribonucleic acid (DNA) or starch. Additionally, measurements of ASE from water suspension with and without phosphatidylcholine (PC) lipids, confirmed Rhodamine… Show more

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Cited by 18 publications
(12 citation statements)
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“…This spectral location at longer wavelengths and the broader spectrum in the case of the thermosetting POF could be explained by its higher dye concentration. It is known that dopant molecules tend to link to one another when the dye concentration is higher than a certain maximum level, thus creating dopant aggregates and, consequently, making the emission bands shift toward longer wavelengths [ 31 ]. In this respect, the crosslinked chains of the thermosetting polymer favor the appearance of dye aggregates when the dopant concentration is high enough [ 32 ].…”
Section: Resultsmentioning
confidence: 99%
“…This spectral location at longer wavelengths and the broader spectrum in the case of the thermosetting POF could be explained by its higher dye concentration. It is known that dopant molecules tend to link to one another when the dye concentration is higher than a certain maximum level, thus creating dopant aggregates and, consequently, making the emission bands shift toward longer wavelengths [ 31 ]. In this respect, the crosslinked chains of the thermosetting polymer favor the appearance of dye aggregates when the dopant concentration is high enough [ 32 ].…”
Section: Resultsmentioning
confidence: 99%
“…Such behavior is related to the J-aggregates formation [44,45]. This phenomenon (already presented in a previous study [46]) has its origin in the lipophilic and cationic nature of Rh6G molecules interacting with amphiphilic lipid bilayers [47]. With an amount of AuNPs lower than 4.8×109, a similar emission wavelength λJ=560 nm (Figure 2c) and a fluorescence intensity (Figure 2b) comparable to that of MLV/Rh6G sample are observed.…”
Section: Resultsmentioning
confidence: 64%
“…Özellikle büyük oranda gelişen Kimya endüstrisinin etkisiyle, çevreyi en çok kirleten maddelerden birisi de boyar ham maddelerdir. Boyarmaddeler, birçok malzemenin renklendirilmesinde ve yüzey özelliklerinin geliştirilmesinde, ilaç sanayinde (Bazylevich, Patsenker, & Gellerman, 2017), dye lazerlerde elektro optik manyetik ışımanın dalga boyunu ayarlamada (Cyprych, Kopczyńska, Kajzar, Rau, & Mysliwiec, 2015), fotodinamik terapide (Kamkaew et al, 2013;Molupe et al, 2018), gıda ve kozmetik endüstrisinde (Patil & Datar, 2016) ve daha birçok alanda geniş kullanıma sahiptir. Endüstride kullanılan boyarmaddelerin birçoğu sentetiktir ve toksik etkisi, ciddi çevre ve sağlık sorunlarına yol açmaktadır.…”
Section: Introductionunclassified
“…Özellikle büyük oranda gelişen Kimya endüstrisinin etkisiyle, çevreyi en çok kirleten maddelerden birisi de boyar ham maddelerdir. Boyarmaddeler, birçok malzemenin renklendirilmesinde ve yüzey özelliklerinin geliştirilmesinde, ilaç sanayinde (Bazylevich, Patsenker, & Gellerman, 2017), dye lazerlerde elektro optik manyetik ışımanın dalga boyunu ayarlamada (Cyprych, Kopczyńska, Kajzar, Rau, & Mysliwiec, 2015), fotodinamik terapide (Kamkaew et al, 2013;Molupe et al, 2018), gıda ve kozmetik endüstrisinde (Patil & Datar, 2016) (Bai et al, 2016;Shak, Dawood, & Sen, 2017). Sulu ortamdan boyarmaddelerin fiziksel ya da kimyasal olarak adsorpsiyonu, gerek sürecin kolayca takip edilebilmesi ve maliyeti, gerekse boyarmaddelerin %90-99 oranlarına kadar uzaklaştırılabilmeleri açısından ileri düzeyde etkin bir yöntemdir ve araştırmacılar arasında oldukça ilgi çekicidir (Al-Ghouti, Khraisheh, Allen, & Ahmad, 2003;Lin, Ma, Liu, Li, & He, 2019;Raj, Manimozhi, & Saravanathamizhan, 2019;Zhou, Zhou, Hu, Yan, & Yang, 2019).…”
Section: Introductionunclassified