Oxide Heterostructures for Efficient Solar Cells

被引：113

作者：

Assmann, Elias ^{[1
]}

Blaha, Peter ^{[2
]}

Laskowski, Robert ^{[2
]}

Held, Karsten ^{[1
]}

Okamoto, Satoshi ^{[3
]}

Sangiovanni, Giorgio ^{[1
,4
]}

机构：

[1] Vienna Univ Technol, Inst Solid State Phys, A-1040 Vienna, Austria

[2] Vienna Univ Technol, Inst Mat Chem, A-1040 Vienna, Austria

[3] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

[4] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 07期

关键词：

INTERFACE; SUPERLATTICES; TEMPERATURE; INSULATOR;

D O I：

10.1103/PhysRevLett.110.078701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We propose an unexplored class of absorbing materials for high-efficiency solar cells: heterostructures of transition-metal oxides. In particular, LaVO3 grown on SrTiO3 has a direct band gap similar to 1.1 eV in the optimal range as well as an internal potential gradient, which can greatly help to separate the photo-generated electron-hole pairs. Furthermore, oxide heterostructures afford the flexibility to combine LaVO3 with other materials such as LaFeO3 in order to achieve even higher efficiencies with band-gap graded solar cells. We use density-functional theory to demonstrate these features. DOI: 10.1103/PhysRevLett.110.078701

引用

页数：5

共 30 条

[1] Linear optical properties of solids within the full-potential linearized augmented planewave method [J].

Ambrosch-Draxl, Claudia ;

Sofo, Jorge O. .

COMPUTER PHYSICS COMMUNICATIONS, 2006, 175 (01) :1-14

[2] OPTICAL STUDY OF ELECTRONIC-STRUCTURE IN PEROVSKITE-TYPE RMO(3) (R=LA, Y M=SC, TI, V, CR, MN, FE, CO, NI, CU) [J].

ARIMA, TH ;

TOKURA, Y .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1995, 64 (07) :2488-2501

[3]

Blaha P., 2001, CALCULATING CRYST PR, V60

[4] No mixing of superconductivity and antiferromagnetism in a high-temperature superconductor [J].

Bozovic, I ;

Logvenov, G ;

Verhoeven, MAJ ;

Caputo, P ;

Goldobin, E ;

Geballe, TH .

NATURE, 2003, 422 (6934) :873-875

[5] Magnetic effects at the interface between non-magnetic oxides [J].

Brinkman, A. ;

Huijben, M. ;

Van Zalk, M. ;

Huijben, J. ;

Zeitler, U. ;

Maan, J. C. ;

Van der Wiel, W. G. ;

Rijnders, G. ;

Blank, D. H. A. ;

Hilgenkamp, H. .

NATURE MATERIALS, 2007, 6 (07) :493-496

[6] Electric field control of the LaAlO3/SrTiO3 interface ground state [J].

Caviglia, A. D. ;

Gariglio, S. ;

Reyren, N. ;

Jaccard, D. ;

Schneider, T. ;

Gabay, M. ;

Thiel, S. ;

Hammerl, G. ;

Mannhart, J. ;

Triscone, J. -M. .

NATURE, 2008, 456 (7222) :624-627

[7] Nanoscale control of an interfacial metal-insulator transition at room temperature [J].

Cen, C. ;

Thiel, S. ;

Hammerl, G. ;

Schneider, C. W. ;

Andersen, K. E. ;

Hellberg, C. S. ;

Mannhart, J. ;

Levy, J. .

NATURE MATERIALS, 2008, 7 (04) :298-302

[8]

CLAESSEN R, COMMUNICATION

[9] Orbital fluctuations in the different phases of LaVO3 and YVO3 [J].

De Raychaudhury, M. ;

Pavarini, E. ;

Andersen, O. K. .

PHYSICAL REVIEW LETTERS, 2007, 99 (12)

[10] Polar discontinuity doping of the LaVO3/SrTiO3 interface [J].

Hotta, Y. ;

Susaki, T. ;

Hwang, H. Y. .

PHYSICAL REVIEW LETTERS, 2007, 99 (23)

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