Forster resonant energy transfer in lead sulfide QD assemblies

被引：3

作者：

Litvin, Aleksandr P. ^{[1
]}

Ushakova, Elena V. ^{[1
]}

Parfenov, Peter. S. ^{[1
]}

Cherevkov, Sergey A. ^{[1
]}

Fedorov, Anatoly V. ^{[1
]}

Baranov, Alexander V. ^{[1
]}

机构：

[1] Natl Res Univ ITMO, Kronverksky Pr 49, St Petersburg 197101, Russia

来源：

NANOPHOTONICS V | 2014年 / 9126卷

关键词：

Quantum dots; photoluminescence; energy transfer; PbS; PBS QUANTUM DOTS; OPTICAL-PROPERTIES; NANOCRYSTALS; LUMINESCENCE; DECAY;

D O I：

10.1117/12.2051649

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Concentration-dependent optical properties of lead sulfide (PbS) quantum dots (QDs) embedded into a porous matrix are investigated. A red shift of luminescence peak position depends on QD concentration and evidences for Forster resonant energy transfer (FRET) inside the quasi-monodispersed assemblies. PL decay curves show significant influence of FRET process on QD optical properties. PL lifetime size-dependencies are found to be dependent on the QD concentration. The growing impact of FRET process with increasing QD concentration leads to transformation of anomalous size-dependence of PL lifetimes to the inverse. FRET efficiency gradually increases with QD concentration and saturates at 35% that corresponds to the formation of an ordered QD superstructure. Formation of PbS QD superstructure is confirmed by X-ray analysis, while calculated interdot distance in the superstructure coincides with the one obtained by FRET technique.

引用

页数：7

共 36 条

[1]

Andreakoua P., 2012, P SOC PHOTO-OPT INS, V8256

[2] Engineering band structure in nanoscale quantum-dot supercrystals [J].

Baimuratov, Anvar S. ;

Rukhlenko, Ivan D. ;

Fedorov, Anatoly V. .

OPTICS LETTERS, 2013, 38 (13) :2259-2261

[3] Quantum-dot supercrystals for future nanophotonics [J].

Baimuratov, Anvar S. ;

Rukhlenko, Ivan D. ;

Turkov, Vadim K. ;

Baranov, Alexander V. ;

Fedorov, Anatoly V. .

SCIENTIFIC REPORTS, 2013, 3

[4] Low-Temperature Solution-Processed Solar Cells Based on PbS Colloidal Quantum Dot/CdS Heterojunctions [J].

Chang, Liang-Yi ;

Lunt, Richard R. ;

Brown, Patrick R. ;

Bulovic, Vladimir ;

Bawendi, Moungi G. .

NANO LETTERS, 2013, 13 (03) :994-999

[5] Near Infrared Emission from Monomodal and Bimodal PbS Nanocrystal Superlattices [J].

Corricelli, Michela ;

Enrichi, Francesco ;

Altamura, Davide ;

De Caro, Liberato ;

Giannini, Cinzia ;

Falqui, Andrea ;

Agostiano, Angela ;

Curri, M. Lucia ;

Striccoli, Marinella .

JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (10) :6143-6152

[6] Self-organization of mono- and bi-modal PbS nanocrystal populations in superlattices [J].

Corricelli, Michela ;

Altamura, Davide ;

De Caro, Liberato ;

Guagliardi, Antonella ;

Falqui, Andrea ;

Genovese, Alessandro ;

Agostiano, Angela ;

Giannini, Cinzia ;

Striccoli, Marinella ;

Curri, M. Lucia .

CRYSTENGCOMM, 2011, 13 (12) :3988-3997

[7] Highly efficient multiple exciton generation in colloidal PbSe and PbS quantum dots [J].

Ellingson, RJ ;

Beard, MC ;

Johnson, JC ;

Yu, PR ;

Micic, OI ;

Nozik, AJ ;

Shabaev, A ;

Efros, AL .

NANO LETTERS, 2005, 5 (05) :865-871

[8] Colloidal Arenethiolate-Capped PbS Quantum Dots: Optoelectronic Properties, Self-Assembly, and Application in Solution-Cast Photovoltaics [J].

Giansante, Carlo ;

Carbone, Luigi ;

Giannini, Cinzia ;

Altamura, Davide ;

Ameer, Zoobia ;

Maruccio, Giuseppe ;

Loiudice, Anna ;

Belviso, Maria R. ;

Cozzoli, P. Davide ;

Rizzo, Aurora ;

Gigli, Giuseppe .

JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (25) :13305-13317

[9] Long-range resonance transfer of electronic excitations in close-packed CdSe quantum-dot solids [J].

Kagan, CR ;

Murray, CB ;

Bawendi, MG .

PHYSICAL REVIEW B, 1996, 54 (12) :8633-8643

[10] Electronic structure and optical properties of PbS and PbSe quantum dots [J].

Kang, I ;

Wise, FW .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1997, 14 (07) :1632-1646

← 1 2 3 4 →