Photosensitization of multiwalled carbon nanotube scaffolds with ZnO quantum dots for photovoltaic applications

被引：6

作者：

Dutta, M. ^{[1
]}

Basak, D. ^{[1
]}

机构：

[1] Indian Assoc Cultivat Sci, Dept Solid State Phys, Kolkata 700032, India

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2011年 / 13卷 / 10期

关键词：

Quantum dots; ZnO; Composite; Multiwalled carbon nanotubes; Photosensitization; Photovoltaic solar cell; Energy conversion; SENSITIZED SOLAR-CELLS; ELECTRON-TRANSPORT; CDS; PHOTOLUMINESCENCE; NANOSTRUCTURES; LUMINESCENCE; PARTICULATE; EFFICIENCY; PARTICLES; IMPEDANCE;

D O I：

10.1007/s11051-011-0517-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this article, we have decorated multiwalled carbon nanotubes (MWCNTs) scaffold with ZnO quantum dots (QDs, size in the range of 2.9-4.5 nm) and investigated their prospects for photovoltaic applications. ZnO QDs, in the present study, work as photosensitizer instead of electron transporting media as used in recent conventional strategic solar cells. ZnO QDs/MWCNTs composite shows an increased visible absorbance and quenching of the broad visible emission at around similar to 560 nm, while only ZnO QDs exhibit a strong visible emission. An efficient electron-hole separation facilitates an increase in the short-circuit current. These results show a possibility of developing a nontoxic, ZnO QDs sensitized MWCNTs composite-based photovoltaic solar cell.

引用

页码：5311 / 5319

页数：9

共 45 条

[21] SPECTRAL SENSITIZATION OF A TIO2 SEMICONDUCTOR ELECTRODE BY CDS MICROCRYSTALS AND ITS PHOTOELECTROCHEMICAL PROPERTIES [J].

KOHTANI, S ;

KUDO, A ;

SAKATA, T .

CHEMICAL PHYSICS LETTERS, 1993, 206 (1-4) :166-170

[22] Quantum dot solar cells.: Tuning photoresponse through size and shape control of CdSe-TiO2 architecture [J].

Kongkanand, Anusorn ;

Tvrdy, Kevin ;

Takechi, Kensuke ;

Kuno, Masaru ;

Kamat, Prashant V. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (12) :4007-4015

[23] Single wall carbon nanotube scaffolds for photoelectrochemical solar cells.: Capture and transport of photogenerated electrons [J].

Kongkanand, Anusorn ;

Dominguez, Rebeca Martinez ;

Kamat, Prashant V. .

NANO LETTERS, 2007, 7 (03) :676-680

[24] Regenerative PbS and CdS Quantum Dot Sensitized Solar Cells with a Cobalt Complex as Hole Mediator [J].

Lee, Hyo Joong ;

Chen, Peter ;

Moon, Soo-Jin ;

Sauvage, Frederic ;

Sivula, Kevin ;

Bessho, Takeru ;

Gamelin, Daniel R. ;

Comte, Pascal ;

Zakeeruddin, Shaik M. ;

Seok, Sang Il ;

Graetzel, Michael ;

Nazeeruddin, Md. K. .

LANGMUIR, 2009, 25 (13) :7602-7608

[25] Efficient CdSe Quantum Dot-Sensitized Solar Cells Prepared by an Improved Successive Ionic Layer Adsorption and Reaction Process [J].

Lee, HyoJoong ;

Wang, Mingkui ;

Chen, Peter ;

Gamelin, Daniel R. ;

Zakeeruddin, Shaik M. ;

Graetzel, Michael ;

Nazeeruddin, Md. K. .

NANO LETTERS, 2009, 9 (12) :4221-4227

[26] Nanowire-quantum-dot solar cells and the influence of nanowire length on the charge collection efficiency [J].

Leschkies, Kurtis S. ;

Jacobs, Alan G. ;

Norris, David J. ;

Aydil, Eray S. .

APPLIED PHYSICS LETTERS, 2009, 95 (19)

[27] Different origins of visible luminescence in ZnO nanostructures fabricated by the chemical and evaporation methods [J].

Li, D ;

Leung, YH ;

Djurisic, AB ;

Liu, ZT ;

Xie, MH ;

Shi, SL ;

Xu, SJ ;

Chan, WK .

APPLIED PHYSICS LETTERS, 2004, 85 (09) :1601-1603

[28] Photovoltaic cells fabricated utilizing core-shell CdSe/ZnSe quantum dot/multiwalled carbon nanotube heterostructures [J].

Li, Fushan ;

Son, Dong Ick ;

Kim, Tae Whan ;

Ryu, Euidock ;

Kim, Sang Wook ;

Lee, Sun Kyun ;

Cho, Yong Hoon .

APPLIED PHYSICS LETTERS, 2009, 95 (06)

[29]

Ma BB, 2011, PHYS CHEM CHEM PHYS, V13, P2656, DOI [10.1039/c0cp02415e, 10.1039/c0ep02415e]

[30] Complex nature of the UV and visible fluorescence of Colloidal ZnO nanoparticles [J].

Monticone, S ;

Tufeu, R ;

Kanaev, AV .

JOURNAL OF PHYSICAL CHEMISTRY B, 1998, 102 (16) :2854-2862

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