Self-assembled CdSe/CdS nanorod micro-lasers fabricated from solution by capillary jet deposition

被引：43

作者：

Zavelani-Rossi, Margherita ^{[1
]}

Krahne, Roman ^{[2
]}

Della Valle, Giuseppe ^{[1
]}

Longhi, Stefano ^{[1
]}

Franchini, Isabella R. ^{[3
]}

Girardo, Salvatore ^{[3
]}

Scotognella, Francesco ^{[1
]}

Pisignano, Dario ^{[4
,5
]}

Manna, Liberato ^{[2
]}

Lanzani, Guglielmo ^{[1
,6
]}

Tassone, Francesco ^{[6
]}

机构：

[1] Politecn Milan, Dipartimento Fis, IFN CNR, I-20133 Milan, Italy

[2] Ist Italiano Tecnol, I-16163 Genoa, Italy

[3] Univ Salento, CNR, Ist Nanosci, NNL, I-73100 Lecce, Italy

[4] Univ Salento, CNR, Dipartimento Matemat & Fis Ennio De Giorgi, NNL,Ist Nanosci, I-73100 Lecce, Italy

[5] IIT UniLe, Ctr Biomol Nanotechnol, I-73010 Lecce, Italy

[6] IIT POLIMI, Ctr Nanosci & Technol, I-20133 Milan, Italy

来源：

LASER & PHOTONICS REVIEWS | 2012年 / 6卷 / 05期

关键词：

ALIGNED SEMICONDUCTOR NANORODS; QUANTUM RODS; OPTICAL GAIN; NANOCRYSTALS;

D O I：

10.1002/lpor.201200010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Here we show an innovative, simple and reliable method to fabricate micro-lasers by self-assembly of rod-shaped nanocrystals. We use dot/rod core/shell CdSe/CdS nanorods to form optical micro-resonators by exploiting their self-organization into well-defined coffee stain rings. The fabrication process merely consists of capillary jet deposition of a nanorod solution onto a glass substrate, and is scalable, economic, and highly reproducible. Upon optical pumping of the micro-resonators we obtain laser emission in the red or in the blue-green spectral region, demonstrating lasing both from core and shell transitions, with low pumping thresholds. Modeling by full-wave numerical simulations according to generalized (i. e. scattering) formulation of laser theory demonstrates lasing from complex modes of the self-assembled cavity.

引用

页码：678 / 683

页数：6

共 37 条

[11] Light amplification in semiconductor nanocrystals: Quantum rods versus quantum dots [J].

Htoon, H ;

Hollingworth, JA ;

Malko, AV ;

Dickerson, R ;

Klimov, VI .

APPLIED PHYSICS LETTERS, 2003, 82 (26) :4776-4778

[12] Facile thermal treatment process for assembling vertically aligned semiconductor nanorods in solution [J].

Hung, Albert M. ;

Oh, Taeseok ;

Cha, Jennifer N. .

NANOSCALE, 2012, 4 (03) :1016-1020

[13]

Kazes M, 2002, ADV MATER, V14, P317, DOI 10.1002/1521-4095(20020219)14:4<317::AID-ADMA317>3.3.CO

[14]

2-L

[15] Temperature dependence of optical gain in CdSe/ZnS quantum rods [J].

Kazes, Miri ;

Oron, Dan ;

Shweky, Itzhak ;

Banin, Uri .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (22) :7898-7905

[16] Amplified spontaneous emission from core and shell transitions in CdSe/CdS nanorods fabricated by seeded growth [J].

Krahne, Roman ;

Zavelani-Rossi, Margherita ;

Lupo, Maria Grazia ;

Manna, Liberato ;

Lanzani, Guglielmo .

APPLIED PHYSICS LETTERS, 2011, 98 (06)

[17] Macroscale alignment of CdSe/CdS nanorods by porous anodic alumina templates [J].

Lutich, A. ;

Carbone, L. ;

Volchek, S. ;

Yakovtseva, V. ;

Sokol, V. ;

Manna, L. ;

Gaponenko, S. .

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2009, 3 (05) :151-153

[18] Coupling between precipitation and contact-line dynamics: Multiring stains and stick-slip motion [J].

Maheshwari, Siddharth ;

Zhang, Lu ;

Zhu, Yingxi ;

Chang, Hsueh-Chia .

PHYSICAL REVIEW LETTERS, 2008, 100 (04)

[19] Interplay between optical gain and photoinduced absorption in CdSe nanocrystals [J].

Malko, AV ;

Mikhailovsky, AA ;

Petruska, MA ;

Hollingsworth, JA ;

Klimov, VI .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (17) :5250-5255

[20] Hybrid organic - Nanocrystal solar cells [J].

Milliron, DJ ;

Gur, I ;

Alivisatos, AP .

MRS BULLETIN, 2005, 30 (01) :41-44

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