Intermediate band solar cells: Recent progress and future directions
Y Okada, NJ Ekins-Daukes, T Kita, R Tamaki… - Applied physics …, 2015 - pubs.aip.org
Extensive literature and publications on intermediate band solar cells (IBSCs) are reviewed.
A detailed discussion is given on the thermodynamics of solar energy conversion in IBSCs …
A detailed discussion is given on the thermodynamics of solar energy conversion in IBSCs …
Increase in photocurrent by optical transitions via intermediate quantum states in direct-doped InAs/GaNAs strain-compensated quantum dot solar cell
Y Okada, T Morioka, K Yoshida, R Oshima… - Journal of applied …, 2011 - pubs.aip.org
We have developed a technique to fabricate quantum dot (QD) solar cells with direct doping
of Si into InAs QDs in GaNAs strain-compensating matrix in order to control the quasi-Fermi …
of Si into InAs QDs in GaNAs strain-compensating matrix in order to control the quasi-Fermi …
Photon ratchet intermediate band solar cells
In this paper, we propose an innovative concept for solar power conversion—the “photon
ratchet” intermediate band solar cell (IBSC)—which may increase the photovoltaic energy …
ratchet” intermediate band solar cell (IBSC)—which may increase the photovoltaic energy …
Intermediate band solar cell with extreme broadband spectrum quantum efficiency
We report, for the first time, about an intermediate band solar cell implemented with
InAs/AlGaAs quantum dots whose photoresponse expands from 250 to∼ 6000 nm. To our …
InAs/AlGaAs quantum dots whose photoresponse expands from 250 to∼ 6000 nm. To our …
Simulation of quantum dot solar cells including carrier intersubband dynamics and transport
M Gioannini, AP Cedola, N Di Santo… - IEEE Journal of …, 2013 - ieeexplore.ieee.org
This paper presents a device-level model of quantum dot (QD) solar cells, coupling the
classical drift-diffusion equations for transport of bulk carriers with a set of rate equations …
classical drift-diffusion equations for transport of bulk carriers with a set of rate equations …
In‐plane coupling effect on absorption coefficients of InAs/GaAs quantum dots arrays for intermediate band solar cell
Coupled semiconductor quantum dot (QD) arrays emerged recently as promising structures
for the next generation of high efficiency intermediate band solar cell (IBSC), because of …
for the next generation of high efficiency intermediate band solar cell (IBSC), because of …
Self-organized InGaAs/GaAs quantum dot arrays for use in high-efficiency intermediate-band solar cells
Y Shoji, K Akimoto, Y Okada - Journal of Physics D: Applied …, 2012 - iopscience.iop.org
We have investigated the material properties of multi-layer stacked InGaAs/GaAs quantum
dots (QDs) grown on GaAs (3 1 1) B substrates. Symmetrical lens-shaped QDs were …
dots (QDs) grown on GaAs (3 1 1) B substrates. Symmetrical lens-shaped QDs were …
Two-step photon absorption in InAs/GaAs quantum-dot superlattice solar cells
We studied the two-step photon absorption (TSPA) process in InAs/GaAs quantum-dot
superlattice (QDSL) solar cells. TSPA of subband-gap photons efficiently occurs when …
superlattice (QDSL) solar cells. TSPA of subband-gap photons efficiently occurs when …
Recent progress on quantum dot intermediate band solar cells
Y Okada, K Yoshida, Y Shoji, T Sogabe - IEICE Electronics Express, 2013 - jstage.jst.go.jp
In order to surpass the thermodynamic Shockley-Queisser limit of energy conversion
efficiency of single-junction solar cells, advanced concepts using multi-junction tandem …
efficiency of single-junction solar cells, advanced concepts using multi-junction tandem …
Device simulation of intermediate band solar cells: Effects of doping and concentration
We present a numerical study on the fundamental operation principle of an intermediate
band solar cell (IBSC) by using the self-consistent drift-diffusion method; the effects of …
band solar cell (IBSC) by using the self-consistent drift-diffusion method; the effects of …