Publication

Modeling Surface Recombination with Enhanced Devices Network for Optoelectronics

Jean-Michel Sallese, Camillo Stefanucci, Pietro Buccella, Chiara Rossi
2018
Conference Papers

Résumé

We present a lumped devices network approach to simulate surface recombination effects in optoelectronics devices. The network is composed of generalized lumped devices where the excess carrier concentrations and gradients are mapped on electrical quantities, i.e. equivalent voltages and currents respectively, so that the overall simulation is SPICE-compatible. A novel enhanced device is derived and used as an additional element to account for the influence of the surface in SPICE-like simulations. Thus, in addition to generation, propagation and collection that were included in a former work, recombination at the surface of the semiconductor can be taken into account with standard circuit simulators. Optoelectronic devices performance degradation due to surface recombination is analyzed with this approach and compared with full numerical TCAD simulations.

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https://infoscience.epfl.ch/entities/publication/b3e27791-a143-4af4-a99c-148b24f5e5cb

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Jean-Michel Sallese, Camillo Stefanucci, Pietro Buccella, Chiara Rossi
2018
Conference Papers

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/b3e27791-a143-4af4-a99c-148b24f5e5cb

À propos de ce résultat

Proximité ontologique

Physique

Électromagnétisme: Circuit électrique

Concepts associés (26)

Network analysis (electrical circuits)

In electrical engineering and electronics, a network is a collection of interconnected components. Network analysis is the process of finding the voltages across, and the currents through, all network components. There are many techniques for calculating these values; however, for the most part, the techniques assume linear components. Except where stated, the methods described in this article are applicable only to linear network analysis.

Carrier generation and recombination

In the solid-state physics of semiconductors, carrier generation and carrier recombination are processes by which mobile charge carriers (electrons and electron holes) are created and eliminated. Carrier generation and recombination processes are fundamental to the operation of many optoelectronic semiconductor devices, such as photodiodes, light-emitting diodes and laser diodes. They are also critical to a full analysis of p-n junction devices such as bipolar junction transistors and p-n junction diodes.

Equivalent circuit

In electrical engineering, an equivalent circuit refers to a theoretical circuit that retains all of the electrical characteristics of a given circuit. Often, an equivalent circuit is sought that simplifies calculation, and more broadly, that is a simplest form of a more complex circuit in order to aid analysis. In its most common form, an equivalent circuit is made up of linear, passive elements. However, more complex equivalent circuits are used that approximate the nonlinear behavior of the original circuit as well.

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