Research Publications in journals:
Light-Emitting-Diodes based on ordered InGaN nanocolumns emitting in the blue, green and yellow spectral range
Year:2014
Research Areas
- Physics - Semiconductors and band structure
Information
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Abstract
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| The growth of ordered arrays of InGaN/GaN nanocolumnar light emitting diodes by molecular beam epitaxy, emitting in the blue (441 nm), green (502 nm), and yellow (568 nm) spectral range is reported. The device active region, consisting of a nanocolumnar InGaN section of nominally constant composition and 250 to 500 nm length, is free of extended defects, which is in strong contrast to InGaN layers (planar) of similar composition and thickness. The devices are driven under pulsed operation up to 1300 A/cm2 without traces of efficiency droop. Electroluminescence spectra show a very small blue shift with increasing current, (almost negligible in the yellow device) and line widths slightly broader than those of state-of-the-art InGaN quantum wells. | |
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International
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JCR
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Title
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Nanotechnology |
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ISBN
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0957-4484 |
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Impact factor JCR
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Impact info
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Volume
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25 |
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Journal number
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From page
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435203-1 |
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To page
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435203-7 |
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Month
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SIN MES |
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Ranking
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Open Access publication
Participants
- Autor: Ana Mª Bengoechea Encabo UPM
- Autor: Steven Albert . UPM
- Autor: David Lopez-Romero Moraleda UPM
- Autor: Pierre Lefebvre CNRS¿Laboratoire Charles Coulomb (L2C)
- Autor: Francesca Barbagini
- Autor: Almudena Torres-Pardo Dept. Química Inorgánica, Universidad Complutense
- Autor: Jose M. Gonzalez-Calbet Dept. Química Inorgánica, Universidad Complutense
- Autor: Miguel Angel Sanchez Garcia UPM
- Autor: Enrique Calleja Pardo UPM
Research Group, Departaments and Institutes related
- Creador: Grupo de Investigación: Grupo de Dispositivos Semiconductores del ISOM
- Centro o Instituto I+D+i: Instituto Universitario de Sistemas Optoelectrónicos y Microtecnología
- Departamento: Ingeniería Electrónica