Radiation resistant AlGaAs/GaAs concentrator solar cells with internal Bragg reflector

Optical properties of periodic, quasi-periodic, and disordered one-dimensional photonic structures

“…' Solar"cells:'The'role'of'a'photonic'crystal'in'a'photovoltaic'device'is'either'the'localization'or' the'reJinjection'of'the'photons,'that'are'not'absorbed'by'the'active'photovoltaic'material,'back' to'the'device'where'charge'separation'takes'place' [173,174]. 'There'are'several'seminal'works' envisaging'the'employment'of'a'1D'photonic'crystal'to'enhance'the'performance'of'a'solar'cell' [175][176][177][178].' Among' the' most' interesting' achievements' in' the' field,' we' would' like' to' mention' one' of' the' first'demonstrations'of'a'powerJconversion'efficiency'improvement'in'a'dye'sensitized'solar' cell' (DSSC)' with' a' 1D' porous' photonic' crystal' [179],' the' fabrication' of' a' transparent' 1D' photonic' crystal' based' DSSC' [180],' the' integration' of' a' porous' photonic' crystal' in' a' organometal' halide' perovskite' solar' cell' [181],' the' integration' of' 1D' photonic' crystal' in' a' semitransparent'polymer'solar'cell' [182,183] 4.1.…”

Design of an intermediate Bragg reflector within triple-junction solar cells for spectrum splitting applications

“…Dimroth et al used 10 periods of AlInAs/GaInAs bilayers in GaInP/GaInAs tandem cells to enhance optical absorption [11,12]. Shvarts et al employed a 12-period AlAs/GaAs DBR as a selective mirror in the base of AlGaAs/GaAs solar cells for space applications, demonstrating improved quantum efficiency as well as radiation stability [13][14][15][16]. DBRs were used to enhance radiation stability and improve efficiency of monolithic multijunction solar cells by Azur Space [17].…”

The potential and design principle for next‐generation spectrum‐splitting photovoltaics: Targeting 50% efficiency through built‐in filters and generalization of concept

“…Notably, such filters can be feasibly built into the rear of a solar cell using current industrial facilities. There have already been works reporting on the use of distributed Bragg mirrors to enhance light reabsorption in monolithic multijunction cells. The method can be adapted, such as by tuning the optical windows, to find its new applications in next‐generation spectrum‐splitting photovoltaics.…”