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Journal ArticleDOI

Radiative Recombination in Silicon p‐n Junctions

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TLDR
In this article, the electroluminescence of silicon was investigated in the temperature range between 300 and 77 °K, and an absolute measurement of the internal quantum efficiency yields a room temperature value of 2 × 10−6 for the band-to-band emission.
Abstract
The electroluminescence of silicon was investigated in the temperature range between 300 and 77 °K. The near edge emission is due to indirect band-to-band transitions associated with TO and TA phonon emission/absorption. The intensity-voltage relation shows that this emission is connected with the diffusion current. At low voltages, additional long wavelength emission is observed which is connected with recombination in the space charge region. An absolute measurement of the internal quantum efficiency yields a room temperature value of 2 × 10−6 for the band-to-band emission. This value is well described by a theoretical radiative lifetime derived from van Roosbroeck-Shockley statistics and by an experimental non-radiative lifetime. Die Elektrolumineszenz von Silizium p-n Ubergangen wurde zwischen 300 und 77 °K untersucht. Die Emission nahe der Bandkante wird durch indirekte Band-Band-Ubergange unterstutzt durch TO- und TA-Phononen gedeutet. Diese Strahlungskomponente ist mit dem Diffusionsstrom gekoppelt, wie die Intensitat-Spannungs-Abhangigkeit zeigt. Bei kleinen Spannungen wird eine langwellige Emission, die mit Rekombination in der Raumladungszone gekoppelt ist, beobachtet. Eine Absolutmessung der inneren Quantenausbeute ergibt den Wert 2 × 10−6 fur 300 °K. Er kann theoretisch bei Kenntnis einer nichtstrahlenden Lebensdauer durch eine Berechnung der strahlenden Lebensdauer nach van Roosbroeck-Shockley bestimmt werden.

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Citations
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Journal ArticleDOI

Silicon quantum wire array fabrication by electrochemical and chemical dissolution of wafers

TL;DR: In this paper, free standing Si quantum wires can be fabricated without the use of epitaxial deposition or lithography using electrochemical and chemical dissolution steps to define networks of isolated wires out of bulk wafers.
Journal ArticleDOI

Temperature dependence of the radiative recombination coefficient of intrinsic crystalline silicon

TL;DR: The Centre of Excellence for Advanced Silicon Photovoltaics and Photonics is supported under the Australian Research Council's Centres of Excellence Scheme as discussed by the authors, which is supported by the Australian Government.
Journal ArticleDOI

Visible electroluminescence from porous silicon np heterojunction diodes

TL;DR: In this article, the preparation of silicon-based visible light-emitting diodes, configured as heterojunctions between porous silicon (formed by electrochemical etching of p-type silicon wafers), and n-type indium tin oxide (ITO), was reported.
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Record High Efficiency Single-Walled Carbon Nanotube/Silicon p-n Junction Solar Cells

TL;DR: This study suggests that these hybrid solar cells operate in the same manner as single crystalline p-n homojunction Si solar cells.
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Temperature dependence of the radiative recombination coefficient in silicon

TL;DR: In this article, the temperature dependence of the intrinsic radiative recombination coefficient B in silicon was measured from 100 to 400 °K and a unique theory of the indirect radiative band-to-band and free exciton recombination was given.
References
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Journal ArticleDOI

Carrier Generation and Recombination in P-N Junctions and P-N Junction Characteristics

TL;DR: In this article, the authors show that the current due to generation and recombination of carriers from generation-recombination centers in the space charge region of a p-n junction accounts for the observed characteristics.
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The theory of p-n junctions in semiconductors and p-n junction transistors

TL;DR: The theory of potential distribution and rectification for p-n junctions is developed with emphasis on germanium, resulting in an admittance for a simple case varying as (1 + iωτ p )1/2 where τ p is the lifetime of a hole in the n-region.
Journal ArticleDOI

Photon-Radiative Recombination of Electrons and Holes in Germanium

TL;DR: The spectral distribution of photon generation for the photon-radiative recombination of electrons and holes in germanium is determined from known optical properties by application of the principle of detailed balance.
Journal ArticleDOI

Fine structure in the absorption-edge spectrum of si

TL;DR: In this paper, the authors analyzed the absorption spectrum of Si, made with high resolution, near the main absorption edge, at various temperatures between 4.2 and 4.6°C and revealed fine structure in the absorption on the long-wavelength side of this edge.
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