We proposed a theoretical modeling of a “giant” colloidal core–shell quantum dot with a strain-adapting alloyed interfacial layer between the core and shell materials for solar cell applications. The recently modified detailed balance model [J. Appl. Phys. 125, 174302 (2019) [CrossRef] ] is further modified in this paper to obtain a more realistic conversion efficiency (CE) of the ${\rm CdSe}/{{\rm CdSe}_x}{{\rm S}_{1 - x}}/{\rm CdS}$ quantum dot solar cell. This proposed model computes the CE, considering the significant impact of the energy gap and oscillator strength simultaneously. The CE is investigated for different alloying factors “$x$” by considering the strain effect between the heterostructure. The results obtained in terms of CE and photoluminescence peak wavelength nearly approximate the experimental studies of similar dot structure and dimensions.

中文翻译：

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带有合金化界面层的“巨型”胶体核-壳量子点的理论模型，用于太阳能电池应用

我们提出了一种“巨型”胶体核-壳量子点的理论模型，该胶体在核和壳材料之间具有应变适应合金化界面层，用于太阳能电池应用。最近修改的详细余额模型[J. 应用 物理 125，174302（2019）[交叉引用] ]在本文进一步修饰以获得更真实的转换效率（CE）的$ {\ RM的CdSe} / {{\ RM的CdSe} _x} {{\ RM S} _ {1-x}} / {\ rm CdS} $量子点太阳能电池。提出的模型计算了CE，同时考虑了能隙和振荡器强度的显着影响。对于不同的合金化因素，对CE进行了调查“ $ x $通过考虑异质结构之间的应变效应。根据CE和光致发光峰波长获得的结果几乎接近于类似点结构和尺寸的实验研究。