CdSe Quantum-Dot-Sensitized Solar Cell with ∼100% Internal Quantum Efficiency

被引：113

作者：

Fuke, Nobuhiro ^{[1
]}

Hoch, Laura B. ^{[2
]}

Koposov, Alexey Y. ^{[2
]}

Manner, Virginia W. ^{[2
]}

Werder, Donald J. ^{[2
]}

Fukui, Atsushi ^{[1
]}

Koide, Naoki ^{[1
]}

Katayama, Hiroyuki ^{[1
]}

Sykora, Milan ^{[2
]}

机构：

[1] Sharp Co Ltd, New Technol Dev Ctr, Solar Syst Dev Grp, Nara 6392198, Japan

[2] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

ACS NANO | 2010年 / 4卷 / 11期

关键词：

nanocrystals; quantum dots; solar cell; quantum-dot sensitized solar cell; dye sensitized solar cell; photoelectrochemical solar cell; cadmium selenide; NANOCRYSTALLINE TIO2; ELECTRON-TRANSPORT; PHOTOSENSITIZATION; PBS; CONVERSION; LIGHT; PERFORMANCE; CIRCUIT; SPECTRA; ENERGY;

D O I：

10.1021/nn101319x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have constructed and studied photoelectrochemical solar cells (PECs) consisting of a photoanode prepared by direct deposition of independently synthesized CdSe nanocrystal quantum dots (NQDs) onto a nanocrystalline TiO2 film (NQD/TiO2), aqueous Na2S or Li2S electrolyte, and a Pt counter electrode We show that light harvesting efficiency (LHE) of the NQD/TiO2 photoanode is significantly enhanced when the surface passivation is changed from tri n octylphosphine oxide(TOPO) to 4-butylamine (BA) In the PEC the use of NQDs with a shorter passivating ligand, BA, leads to a significant enhancement in both the electron injection efficiency it the NQD/TiO2 interface and charge collection efficiency at the NQD/electrolyte interface, with the latter attributed mostly to a more efficient diffusion of the electrolyte through the pores of the photoanode We show that by utilizing BA-capped NQDs and aqueous Li2S as an electrolyte, It is possible to achieve similar to 100% internal, quantum efficiency of photon to-electron conversion, matching the performance of dye sensitized solar cells

引用

页码：6377 / 6386

页数：10

共 50 条

[31] Combined experimental and DFT-TDDFT computational study of photoelectrochemical cell ruthenium sensitizers [J].

Nazeeruddin, MK ;

De Angelis, F ;

Fantacci, S ;

Selloni, A ;

Viscardi, G ;

Liska, P ;

Ito, S ;

Bessho, T ;

Grätzel, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (48) :16835-16847

[32] CONVERSION OF LIGHT TO ELECTRICITY BY CIS-X2BIS(2,2'-BIPYRIDYL-4,4'-DICARBOXYLATE)RUTHENIUM(II) CHARGE-TRANSFER SENSITIZERS (X = CL-, BR-, I-, CN-, AND SCN-) ON NANOCRYSTALLINE TIO2 ELECTRODES [J].

NAZEERUDDIN, MK ;

KAY, A ;

RODICIO, I ;

HUMPHRYBAKER, R ;

MULLER, E ;

LISKA, P ;

VLACHOPOULOS, N ;

GRATZEL, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (14) :6382-6390

[33]

Pankove JI., 1975, Optical processes in semiconductors

[34] Photosensitization of nanocrystalline TiO2 by self-assembled layers of CdS quantum dots [J].

Peter, LM ;

Riley, DJ ;

Tull, EJ ;

Wijayantha, KGU .

CHEMICAL COMMUNICATIONS, 2002, (10) :1030-1031

[35]

PINS J, 2008, J PHYS CHEM C, V112, P7742

[36]

Plass R, 2002, J PHYS CHEM B, V106, P7578, DOI 10.1021/jp0204531

[37] Quantum dot solar cells.: Harvesting light energy with CdSe nanocrystals molecularly linked to mesoscopic TiO2 films [J].

Robel, I ;

Subramanian, V ;

Kuno, M ;

Kamat, PV .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (07) :2385-2393

[38] High efficiency carrier multiplication in PbSe nanocrystals: Implications for solar energy conversion [J].

Schaller, RD ;

Klimov, VI .

PHYSICAL REVIEW LETTERS, 2004, 92 (18) :186601-1

[39] Photosensitization of nanostructured TiO2 with CdSe quantum dots:: effects of microstructure and electron transport in TiO2 substrates [J].

Shen, Q ;

Arae, D ;

Toyoda, T .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2004, 164 (1-3) :75-80

[40] Quantitative analysis of light-harvesting efficiency and electron-transfer yield in ruthenium-dye-sensitized nanocrystalline TiO2 solar cells [J].

Tachibana, Y ;

Hara, K ;

Sayama, K ;

Arakawa, H .

CHEMISTRY OF MATERIALS, 2002, 14 (06) :2527-2535

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