Strategy to mitigate the dipole interfacial states in (i)a‐Si:H/MoO x passivating contacts solar cells

Several Efficiency Influencing Factors In CdTe/CdS Solar Cells

MRS Proceedings ◽

10.1557/proc-485-197 ◽

1997 ◽

Vol 485 ◽

Cited By ~ 5

Author(s):

K. Li ◽

Z. C. Feng ◽

A. T. S. Wee ◽

H. C. Chou ◽

J. Y. Lin ◽

...

Keyword(s):

Surface Roughness ◽

Grain Size ◽

Solar Cells ◽

Influencing Factors ◽

Depth Profiling ◽

Force Microscopy ◽

Surface And Interface ◽

Cell Efficiency ◽

Interfacial States ◽

Interfacial Mixing

AbstractSeveral efficiency influencing factors in MOCVD-grown CdTe/CdS solar cells, including preferential crystal orientation of CdTe layers, CdTe grain size and surface roughness, interfacial mixing, and surface and interface geometrical morphology, are studied. X-ray diffraction (XRD) shows that polycrystalline CdTe/CdS solar cells with higher efficiencies tend to have more (111) planes of CdTe parallel to the macro-surface. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) analysis reveal the relationship between the grain size/surface roughness and cell efficiency. Secondary ion mass spectroscopy (SIMS) and Auger electron spectroscopy (AES) depth profiling show that the interfacial geometrical morphology has a significant influence on the efficiency of CdTe/CdS solar cells. Finally it is shown that interfacial mixing reduces the number of interfacial states and recombination centers and the energy loss due to internal reflectance, enhancing the performance of the solar cells.

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Development of numerical modeling program for organic/inorganic hybrid solar cells by including tail/Interfacial states models

10.1117/12.2211904 ◽

2016 ◽

Author(s):

Kuan-Ying Ho ◽

I-Hsin Lu ◽

Yuh-Renn Wu

Keyword(s):

Numerical Modeling ◽

Solar Cells ◽

Hybrid Solar Cells ◽

Inorganic Hybrid ◽

Interfacial States

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Can Recombination Via Interfacial States in MIS Solar Cells be of Advantage?

Photovoltaic Solar Energy Conference ◽

10.1007/978-94-009-8423-3_137 ◽

1981 ◽

pp. 846-850

Author(s):

P. T. Landsberg ◽

C. M. H. Klimpke

Keyword(s):

Solar Cells ◽

Interfacial States

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Theory of the Schottky barrier solar cell

Proceedings of the Royal Society of London Series A - Mathematical and Physical Sciences ◽

10.1098/rspa.1977.0058 ◽

1977 ◽

Vol 354 (1676) ◽

pp. 101-118 ◽

Cited By ~ 23

Keyword(s):

Solar Cells ◽

Solar Cell ◽

Schottky Barrier ◽

Barrier Height ◽

Density Of States ◽

Interfacial Layer ◽

Marked Effect ◽

Numerical Results ◽

Interfacial States

A model of Schottky barrier solar cells with an interfacial layer is described which takes into account more accurately than has been done so far the dependence of barrier height on the interfacial density of states (D s ) and consequently the various potential drops in the cell. The improvement tends to yield higher predicted efficiencies for low values of D s . Also taken into account is the recombination traffic through the interfacial states. This effect is important at high values of D s when it lowers the predicted efficiency. Recombination in the transition and bulk regions is also considered, but this does not have a very marked effect. Numerical results are given for a Au-Si0 2 -Si contact. A new effect - the possible fanning out of the quasi-Fermi levels for the interfacial states - is also noted.

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