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 …

Quantum dot opto-electronic devices

P Bhattacharya, S Ghosh… - Annu. Rev. Mater …, 2004‏ - annualreviews.org
▪ Abstract Highly strained semiconductors grow epitaxially on mismatched substrates in the
Stranski-Krastanow growth mode, wherein islands are formed after a few monolayers of …

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 do**
of Si into InAs QDs in GaNAs strain-compensating matrix in order to control the quasi-Fermi …

Far-infrared photoconductivity in self-organized InAs quantum dots

J Phillips, K Kamath, P Bhattacharya - Applied physics letters, 1998‏ - pubs.aip.org
We report far-infrared photoconductivity in self-organized InAs/GaAs quantum dots grown by
molecular beam epitaxy. Through use of a Fourier transform infrared spectrometer, a …

Theoretical and experimental examination of the intermediate-band concept for strain-balanced (In, Ga) As/Ga (As, P) quantum dot solar cells

V Popescu, G Bester, MC Hanna, AG Norman… - Physical Review B …, 2008‏ - APS
The intermediate-band solar cell (IBSC) concept has been recently proposed to enhance the
current gain from the solar spectrum whilst maintaining a large open-circuit voltage. Its main …

Self-assembled InAs-GaAs quantum-dot intersubband detectors

J Phillips, P Bhattacharya, SW Kennerly… - IEEE Journal of …, 1999‏ - ieeexplore.ieee.org
The use of self-assembled InAs-GaAs quantum dots in photoconductive intersubband
detectors in the far-infrared is presented. Far-infrared absorption is observed in self …

Characteristics of InGaAs quantum dot infrared photodetectors

SJ Xu, SJ Chua, T Mei, XC Wang, XH Zhang… - Applied physics …, 1998‏ - pubs.aip.org
A quantum dot infrared photodetector (QDIP) consisting of self-assembled InGaAs quantum
dots has been demonstrated. Responsivity of 3.25 mA/W at 9.2 μm was obtained for …

Review of experimental results related to the operation of intermediate band solar cells

I Ramiro, A Martí, E Antolin… - IEEE Journal of …, 2014‏ - ieeexplore.ieee.org
The intermediate band solar cell (IBSC) has drawn the attention of the scientific community
as a means to achieve high-efficiency solar cells. Complete IBSC devices have been …

Quantum-dot infrared photodetectors: a review

AD Stiff-Roberts - Journal of Nanophotonics, 2009‏ - spiedigitallibrary.org
Quantum-dot infrared photodetectors (QDIPs) are positioned to become an important
technology in the field of infrared (IR) detection, particularly for high-temperature, low-cost …

Growth and characterization of InGaAs/InGaP quantum dots for midinfrared photoconductive detector

S Kim, H Mohseni, M Erdtmann, E Michel… - Applied Physics …, 1998‏ - pubs.aip.org
We report InGaAs quantum dot intersubband infrared photodetectors grown by low-pressure
metalorganic chemical vapor deposition on semi-insulating GaAs substrates. The optimum …