A novel design for monolithically interconnected modules (MIMs) for thermophotovoltaic power conversion

Ward, Jas S.; Duda, A.; Wanlass, M. W.; Carapella, J. J.; Wu, Xinke; Matson, R. J.; Coutts, T. J.; Moriarty, T.; Murray, Christopher S.; Riley, David R.

doi:10.1063/1.53268

Cited by 16 publications

(11 citation statements)

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“…A solution to the parasitic plasma absorption in the highly doped LCL was developed utilizing a novel, interdigitated interconnect scheme [5,6]. This design incorporated a more lowly LCL carrier concentration of lOl 8/ cm3 rather than the lOl9/cm3 carrier concentration used in the conventional MIM design.…”

Section: Ingaasmimmentioning

confidence: 99%

Monolithic interconnected modules (MIMs) for thermophotovoltaic energy conversion

Wilt

Wehrer

Palmisiano

et al. 2003

Semicond. Sci. Technol.

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Monolit hic Interconnected Modules (MIM) are under dev e lopment for thermophotovoltaic (TPV) energy conversion apphcations. MIM de vices are typifi ed by series-interconnected photovoltaic cells on a common , semi-insul ati ng su bstrate and generally include rear-surface infrared (lR) reflectors. The MIM arc hitecture is being implemented in InGaAsSb materials without semi-insulating substrates through the development of alternative isolation methodologies. Moti vations for developing the MIM structure include: reduced resistive losses , higher output power density than for systems utilizing fro nt surface spectral control, improved thermal coupling and ultimately higher system efficiency. Numerous design and material changes have been investigated since the introduction of the MIM concept in 1994. These developments as well as the current design strategies are addressed.

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Section: Ingaasmimmentioning

confidence: 99%

Monolithic interconnected modules (MIMs) for thermophotovoltaic energy conversion

Wilt

Wehrer

Palmisiano

et al. 2003

Semicond. Sci. Technol.

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“…Hence, the optimal design must consider the combination of photon and electron transport through the multiple layers in the device. The 0.6 eV InGaAs interdigitated MIMs design [6], which is the focus of this study, had been optimized assuming near-normal incidence for photons upon a featureless surface [7]. However, this report demonstrates that optimizing a MIM with a BSR must consider photon angle of incidence effects, detailed surface features, and refraction.…”

Section: Introductionmentioning

confidence: 99%

Monte Carlo analysis of a monolithic interconnected module with a back surface reflector

Ballinger

Charache

Murray³

1999

AIP Conference Proceedings

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NOTICERecently, the photon Monte Carlo code, RACER-X, was modified to include wavelength dependent absorption coefficients and indices of refraction. This work was done in an effort to increase the code's capabilities to be more applicable to a wider range of problems.These new features make RACER-X useful for analyzing devices like Monolithic Interconnected Modules (MIMs) which have etched surface features and incorporates a back surface reflector (BSR) for spectral controL A series of calculations were perfonned on various MIM structures to determine the impact that surEace features and component reflectivities have on spectraI utilization. The traditionaI concern of "cavity photonics" is replaced with ''intracell photonics" in the MIM design. Like the cavity photonic problem previously discussed [ll, spall changes in optical properties and/or geometry can lead to large changes in spectral utilization. The calculations show that seemingly innocuous surface features (e.g., trenches and grid lines) can significantly reduce the spectral utilization due to the non-normal incident photon flux. Photons that enter the device through a trench edge are rehted onto a trajectory where they will not escape. ?hi leads to a reduction in the number of reflected below bandgap photons that r e m to the mdiator and reduce the specaal utilization. In addition, trenches expose a lateral conduction layer in this particular series of calculations which increase the absorption of above bandgap photons in inactive material.

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“…The first was the conventional design that has been under development jointly by Essential Research and NASA Lewis, and also independently by Spire Corporation, for the past several years [1][2][3][5][6]. The second was the interdigitated cle.sign that Was under development at NASA Lewis~d refined independently at the National Renewable Energy Laboratory (NREL) [4]. .,---.,L.…”

Section: Mim Design and Structurementioning

confidence: 99%

“…Monolithic interconnected module (MIM) devices for therrnophotovoltaic (TPV) applications have been under development for the past several years [1][2][3][4][5][6]. In a MIM, small area InGaAs photovoltaic (PV) cells are connected in series monolithically, on a semi-insulating (S.1.)…”

Section: Introductionmentioning

confidence: 99%

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High-performance, lattice-mismatched InGaAs/InP monolithic interconnected modules (MIMs)

Fatemi

Wilt

Hoffman

et al. 1999

AIP Conference Proceedings

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A novel design for monolithically interconnected modules (MIMs) for thermophotovoltaic power conversion

Cited by 16 publications

References 1 publication

Monolithic interconnected modules (MIMs) for thermophotovoltaic energy conversion

Monolithic interconnected modules (MIMs) for thermophotovoltaic energy conversion

Monte Carlo analysis of a monolithic interconnected module with a back surface reflector

High-performance, lattice-mismatched InGaAs/InP monolithic interconnected modules (MIMs)

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