We investigate the electronic and optical properties of a confined exciton in CdS/CdSe/CdS asymmetric quantum well taking into account the geometrical confinement in which the right well size for various values of barrier sizes is varied. The variation of energy difference between the subbands with the change in well width alters the degree of quantum confinement. It behaves as single quantum well as the barrier width becomes very thin. The absorption coefficient brings out the fact that the optical susceptibilities demonstrate a stronger dependence on the spatial confinement. The narrow barrier plays a major role in determining the opto-electronic properties.

中文翻译：

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CdS / CdSe / CdS非对称量子阱中的光吸收

考虑到其中几何尺寸限制，其中各种势垒尺寸的值的正确阱尺寸发生变化，我们研究了CdS / CdSe / CdS非对称量子阱中受限激子的电子和光学性质。子带之间的能量差随阱宽度的变化而变化，从而改变了量子约束的程度。当势垒宽度变得非常薄时，它表现得像单量子阱。吸收系数表明，光学磁化率显示出对空间限制的较强依赖性。窄势垒在确定光电特性方面起着重要作用。