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Investigation of theoretical efficiency limit of hot carriers solar cells with a bulk indium nitride absorber
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10.1063/1.3494047
/content/aip/journal/jap/108/9/10.1063/1.3494047
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/9/10.1063/1.3494047

Figures

Image of FIG. 1.
FIG. 1.

(a) Simplified diagram of a HCSC with indication of major parameters used for modeling. (absorber electronic band gap), (electrons chemical potential), (holes chemical potential), , and (extraction energy of hot carriers). (b) Schematic representation of energy and particle fluxes interactions used in the model (particle fluxes-full arrows and energy fluxes-dotted arrows).

Image of FIG. 2.
FIG. 2.

HCSC efficiency as a function of carrier extraction energy level. Thermalisation time is 100 ps, lattice temperature is 300 K. Absorber layer thickness is 50 nm.

Image of FIG. 3.
FIG. 3.

(a) relations, (b) carriers temperature, (c) carriers densities, and (d) quasi-Fermi potentials separation vs extraction voltage for different extraction energies.

Image of FIG. 4.
FIG. 4.

AR and II lifetimes vs extraction voltage for different extraction energies.

Image of FIG. 5.
FIG. 5.

(a) Thermalisation losses vs extraction voltage for different extraction energies. Thermalisation constant is 100 ps. (b) Calculated efficiency limit versus thermalisation constant.

Image of FIG. 6.
FIG. 6.

Bulk InN absorption coefficient from (Ref. 34) (dashed line) and approximation used for calculation (solid line), (inset) InN photoluminescence signal.

Image of FIG. 7.
FIG. 7.

(a) Efficiency limit vs extraction energy for different absorber thicknesses. (b) Efficiency limits vs absorber thickness for different extraction energies. (c) relations for different absorber thicknesses. Thermalisation constant is 100 ps.

Tables

Generic image for table
Table I.

Model parameters for bulk indium nitride conduction and valence bands. Values have been extracted from Fritsch et al. (Ref. 14).

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/content/aip/journal/jap/108/9/10.1063/1.3494047
2010-11-04
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Investigation of theoretical efficiency limit of hot carriers solar cells with a bulk indium nitride absorber
http://aip.metastore.ingenta.com/content/aip/journal/jap/108/9/10.1063/1.3494047
10.1063/1.3494047
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