Stark shifts of excitonic complexes in quantum wells

Relative stability of excitonic complexes in quasi-one-dimensional semiconductors

“…Optical properties of semiconducting carbon nanotubes (CNs), in particular, are largely determined by excitons [4,5], and can be tuned by electrostatic doping [6][7][8], or by means of the quantum confined Stark effect [9][10][11]. Trions and biexcitons, though not detectable in bulk materials at room temperature, play a significant role in quantum confined systems of reduced dimensionality such as quantum wells [12][13][14][15][16], nanowires [17][18][19][20][21], nanotubes [22][23][24][25][26][27][28][29][30][31][32][33], and quantum dots [34][35][36].…”

Decay of charged complexes in quasi-2D semiconductor structures in the presence of electric fields

“…We mention here the combined perturbation-variational approach used for the calculation of the binding energy of the donor in a QW [8]. In an effort to explain Shield's result, Thilagam [9], using a nonvariational approach, calculated in second order perturbation theory the quadratic Stark effect of the charged exciton in the QW. A minor contribution by the electric field was found to occur for a narrow QW parallel to the growth axes.…”

Effective Length Of Quantum Confinement And Polaron Effect In A GaAs Film Deposited On Al0.3Ga0.7As Substrate

“…This model can also be used to analyze excitonic features in semiconductor quantum wells [4,5]. Further, it can be adapted for magnetic-field-induced effects on shallow-donor states [6,7], biexciton [8,9], impurity states [10][11][12] and the Stark shift of excitonic complexes [13] in semiconductor heterostructures.…”