Landau levels of the C-exciton in CuInSe{sub 2} studied by magneto-transmission

Journal Article · Mon Oct 06 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4897995· OSTI ID:22350851

Rodina, A. V. ^[1]; Shuchalin, G. M. ^[1]; Seisian, R. P. ^[2]; Abdullaev, M. A. ^[3]; Rockett, A. ^[4]; Zhivulko, V. D. ^[5]; Mudryi, A. V. ^[6]; Faugeras, C. ^[7]

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1. A.F. Ioffe Physico-Technical Institute, St. Petersburg 194021 (Russian Federation)
2. St. Petersburg State Polytechnical University, St. Petersburg 195251 (Russian Federation)
3. Institute of Physics, Academy of Science of Russia, Makhachkala (Russian Federation)
4. University of Illinois, Urbana, Illinois 61801 (United States)
5. Scientific-Practical Material Research Centre of the National Academy of Science of Belarus, 19 P. Brovki, Minsk 220072 (Belarus)
6. Department of Physics, SUPA, Strathclyde University, Glasgow G4 0NG (United Kingdom)
7. LNCMI, 25 avenue des Martyrs, BP 166, Grenoble Cedex 938042 (France)

The electronic structure of the solar cell absorber CuInSe{sub 2} is studied using magneto-transmission in thin polycrystalline films at magnetic fields up to 29 T. A, B, and C free excitons are resolved in absorption spectra at zero field and a Landau level fan generated by diamagnetic exciton recombination is observed for fields above 7 T. The dependence of the C band exciton binding energy on magnetic fields, calculated using a hydrogenic approximation, is used to determine the C exciton Rydberg at 0 T (8.5 meV), band gap (1.2828 eV), and hole effective mass m{sub so} = (0.31 ± 0.12)m{sub 0} for the C valence sub-band.

• OSTI ID: 22350851
• Journal Information: Applied Physics Letters, Vol. 105, Issue 14; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION SPECTRA
BINDING ENERGY
COPPER COMPOUNDS
EFFECTIVE MASS
ELECTRONIC STRUCTURE
EV RANGE
EXCITONS
FILMS
HOLES
INDIUM COMPOUNDS
MAGNETIC FIELDS
MAGNETIC PROPERTIES
POLYCRYSTALS
RECOMBINATION
RYDBERG STATES
SELENIUM COMPOUNDS
SOLAR CELLS
TERNARY ALLOY SYSTEMS
TRANSMISSION
VALENCE