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Band offset of quantum wells computed from charge measurements
Author(s) -
Biswas Dipankar,
Chakrabarti Satyajit,
Dasgupta Sudipto,
Kundu Sudakshina,
Datta Resmi
Publication year - 2003
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200301504
Subject(s) - band offset , offset (computer science) , heterojunction , quantum well , computation , discontinuity (linguistics) , quantum , optoelectronics , charge (physics) , computational physics , physics , materials science , band gap , computer science , optics , quantum mechanics , valence band , mathematics , algorithm , mathematical analysis , laser , programming language
Band discontinuity is an important parameter for the design of heterojunction based electronic and opto electronic devices. An alternative method for band offset measurement in quantum wells has been outlined in this paper. The band offset is determined from a comparison of experimental results and theoretical computations of the temperature dependent total charge content of a quantum well. In spite of the simplicity of the measurement procedures the result at its best has an error around ±2%.