The quantum-confined Stark effect in shallow quantum wells
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We have investigated the quantum-confined Stark effect for a series of four InGaAs–GaAs single quantum wells using photocurrent spectroscopy. All four samples reveal quadratic Stark shifts for the lowest electron-to-heavy-hole transition at weak electric fields. The field dependence becomes subquadratic at large applied fields. The field dependent reduction of the exciton binding energy is measured and is on the order of a millielectron volt for applied electric fields approaching 80 kV cm−1.
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1995 ◽
Vol 191
(1)
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pp. 155-159
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1989 ◽
Vol 4
(3)
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pp. 184-190
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1998 ◽
Vol 184-185
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pp. 732-736
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2009 ◽
Vol 15
(4)
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pp. 1080-1091
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