ÓÄÊ 771.534.21 <1398> Ñèíòåç íàíî÷àñòèö çîëîòà è âçàèìîäåéñòâèå èõ ïëàçìîíîâ ñ àãðåãàòàìè òèàòðèìåòèíöèàíèíîâûõ êðàñèòåëåé Å.Ñ. Êîëüöîâà1 , Á.È. Øàïèðî2 , Ì.Â. Àëôèìîâ3,1 ringing-jump@mail.ru Öåíòð ôîòîõèìèè ÐÀÍ, Ìîñêîâñêèé ãîñóäàðñòâåííûé óíèâåðñèòåò òîíêèõ õèìè÷åñêèõ òåõíîëîãèé èì. Ì.Â. Ëîìîíîñîâà, 3 Ìîñêîâñêèé ôèçèêî-òåõè÷åñêèé èíñòèòóò (ãîñóäàðñòâåííûé óíèâåðñèòåò) 1 2  íàñòîÿùåå âðåìÿ çíà÷èòåëüíûé èíòåðåñ ê çîëîòûì íàíî÷àñòèöàì îáóñëîâëåí èõ ïëàçìîííûìè ñâîéñòâàìè [13]. Íà ÿâëåíèè ïëàçìîííîãî ðåçîíàíñà îñíîâûâàåòñÿ íîâàÿ òåõíîëîãèÿ, íàçûâàåìàÿ ïëàçìîíèêîé, êîòîðàÿ ìîæåò ñòàòü çàìåíîé òðàäèöèîííûõ òåõíîëîãèé, èñïîëüçóåìûõ â ñîâðåìåííûõ êîìïüþòåðàõ. Öåëüþ íàñòîÿùåé ðàáîòû áûëî èçó÷åíèå âçàèìîäåéñòâèÿ çîëîòûõ íàíî÷àñòèö ñ J-àãðåãàòàìè ñèììåòðè÷íûõ òèàòðèìåòèíöèàíèíîâûõ êðàñèòåëåé (Êð), ïîãëîùàþùèõ â äëèííîâîëíîâîé âèäèìîé îáëàñòè ñïåêòðà. Çîëîòûå íàíîñòåðæíè, êîòîðûå ÿâëÿþòñÿ ÿäðàìè èçó÷àåìîé ñèñòåìû, ïîëó÷àëè âîññòàíîâëåíèåì âîäíîãî ðàñòâîðà HAuCl4 áîðãèäðèäîì íàòðèÿ ïî ìåòîäèêå [4]. Ïðè ïîêðûòèè ÷àñòèö îðãàíè÷åñêîé îáîëî÷êîé èñïîëüçîâàëè ìåòîäèêó [5]. Òàêèì îáðàçîì ïîëó÷àëè íàíî÷àñòèöû òèïà Au/TMA, ñîñòîÿùèå èç çîëîòîãî ÿäðà è ïîêðûòûå ñòàáèëèçèðóþùåé îáîëî÷êîé èç ïîâåðõíîñòíî-àêòèâíîãî ñîåäèíåíèÿ N,N,Nòðèìåòèë-(11-ìåðêàïòîóíäåöèë)àììîíèé õëîðèäà (TMA). Äëÿ ïîëó÷åíèÿ òðåõêîìïîíåíòíûõ íàíîðàçìåðíûõ ñèñòåì Au/TMA/Êð âîäíûé ðàñòâîð êðàñèòåëÿ Êð äîáàâëÿëè ê ãèäðîçîëþ íàíî÷àñòèö Au/TMA, íà ïîâåðõíîñòè êîòîðûõ ïðîèñõîäèò îáðàçîâàíèå ñëîÿ J-àãðåãàòà àíèîííîãî êðàñèòåëÿ [5]. Ïî ñïåêòðàì ïîãëîùåíèÿ ïîêàçàíî, ÷òî äëÿ òðåõêîìïîíåíòíûõ ñèñòåì Au/TMA/Êð â îáëàñòè ïëàçìîííîé ïîëîñû çîëîòà íàáëþäàåòñÿ ñóùåñòâåííîå óìåíüøåíèå ïîãëîùåíèÿ (àíòèðåçîíàíñ), ÷òî ìîæíî îáúÿñíèòü èíòåðôåðåíöèåé ôîòîâîçáóæäåííûõ ñîñòîÿíèé íàíî÷àñòèö è J-àãðåãàòîâ (ðèñ. 1). Îáíàðóæåíî ïîÿâëåíèå íîâûõ ïîëîñ ïîãëîùåíèÿ àãðåãèðîâàííûõ ôîðì êðàñèòåëåé, êîòîðûå ñâÿçàíû ñ âîçìóùåíèåì ïëàçìîíàìè çîëîòà ýëåêòðîííûõ óðîâíåé àãðåãèðîâàííûõ ôîðì è, êàê ñëåäñòâèå, ñíÿòèåì çàïðåòà íà ýëåêòðîííûå ïåðåõîäû â àãðåãàòå (ðèñ. 1). Òàêèì îáðàçîì, ýôôåêò àíòèðåçîíàíñà ìîæåò áûòü ïîëîæåí â îñíîâó òåõíîëîãèé, èñïîëüçóåìûõ â íàíîýëåêòðîíèêå è ñèñòåìàõ îáðàáîòêè îïòè÷åñêîé èíôîðìàöèè. Êîìïîçèöèîííûå ñèñòåìû ¾íàíî÷àñòèöû çîëîòà/J-àãðåãàòû òèàòðèìåòèíöèàíèíîâûõ êðàñèòåëåé¿ ìîãóò ñëóæèòü ÷óâñòâèòåëüíûì èíñòðóìåíòîì äëÿ èññëåäîâàíèÿ îïòè÷åñêèõ ñâîéñòâ àãðåãàòîâ îðãàíè÷åñêèõ ñîåäèíåíèé. 1 Ðèñ. 1. Ýëåêòðîííûå ñïåêòðû ïîãëîùåíèÿ: 1 çîëÿ íàíî÷àñòèö Au/TMA, 2 âîäíîãî ðàñòâîðà Êð1, 3 ñèñòåìû Au/TMA/Êð1 â êþâåòå ñ òîëùèíîé 1 ñì Ëèòåðàòóðà 1. Vasil'ev D.N., Koltsova E.S., and Chubich D.A. Eect of the PlasmonExciton 2. Øàïèðî Á.È., Êîëüöîâà Å.Ñ., Âèòóõíîâñêèé À.Ã., ×óáè÷ Ä.À., Òîëìà÷åâ À.È., Ñëîìèíñêèé Þ.Ë. Âçàèìîäåéñòâèå ïëàçìîíîâ íàíî÷àñòèö çîëîòà ñ àãðåãàòàìè Interaction on Optical Properties of CoreShell Nanoparticles. Bulletin of the Lebedev Physics Institute. 2010. V. 37. P. 8788. ïîëèìåòèíîâûõ êðàñèòåëåé: íàíî÷àñòèöû ¾íåâèäèìêè¿. Ðîññèéñêèå íàíîòåõíîëîãèè. - 2011. Ò. 6. Ñ. 8387. 3. Yoshida A., Kometani N. Eect of the Interaction between Molecular Exciton and 4. Murphy Ñ.J., Sau T.K., Gole A.M., Orendor C.J., Gao J., Gou L., Hunyadi S.E., Li T. Anisotropic Metal Nanoparticles: Synthesis, Assembly, and Optical Localized Surface Plasmon on the Spectroscopic Properties of Silver Nanoparticles Coated with Cyanine Dye J-Aggregates. J. Phys. Chem. C. 2010. V. 114. P. 28672872. Applications. J. Phys. Chem. B. 2005. V. 109. P. 1385713870. 5. 2 Yoshida A., Uchida N., Kometani N. Synthesis and Spectroscopic Studies of Composite Gold Nanorods with a Double-Shell Structure Composed of Spacer and Cyanine Dye J-Aggregate Layers. Langmuir. 2009. V. 25. P. 1180211807.