Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ UPCommons. Portal de...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
versions View all 4 versions
addClaim

Condensadores de silicio macroporoso

Macroporous silicon capacitors
Authors: Reina Marsiñach, Jordi;

Condensadores de silicio macroporoso

Abstract

[CASTELLÀ] El objetivo del presente trabajo es desarrollar la fabricación de condensadores de silicio macroporoso, producirlos y caracterizarlos. Para ello, como uno de los electrodos se ha utilizado silicio macroporoso. Como segundo electrodo, se planteó en los objetivos iniciales el contacto metálico mediante galvanoplastia. Éste es conveniente para obtener alta conductividad. Además, respecto a la aplicación industrial de estos dispositivos, la galvanoplastia es un proceso muy económico y sencillo de implementar. Se han fabricado varios prototipos de condensadores de silicio macroporoso de alta capacidad, hasta que se logró el primer condensador estable y además sin polaridad. El prototipo implementa correctamente las especificaciones originales sin procesos de reparación. La capacidad máxima lograda es de 10μF, medido tras un envejecimiento superior a dos meses. Por otro lado, el condensador estable por fabricación implementa 5,8μF en un área de 95mm2, sin apreciables variaciones durante el mismo tiempo de envejecimiento. Implementa una capacidad estable en amplitud y en offset de tensión. La resistencia serie medida es inferior a 1Ω y sin embargo sigue siendo ampliamente mejorable mediante una simple optimización de los contactos. La resistencia paralelo en corriente continua es superior a 1GΩ. Todo ello en un volumen útil de 0,03cm3 embebido en un doceavo de oblea de una pulgada cuadrada, con una densidad capacitiva volumétrica estable de 182μF/cm3 . La máxima densidad capacitiva lograda es 10μF/cm2 . La máxima densidad capacitiva viable, con 4μm de paso, es de 33μF/cm2 correspondiente a un óxido de 20nm de espesor. En este límite razonable la densidad capacitiva volumétrica llega a 1000μF/cm3 entre ±20V.

[ANGLÈS] The goal of this work is to develop the manufacturing process of macroporous silicon capacitors, and to produce and characterize them. For this, as one of the electrodes macroporous silicon was used. As the second electrode, it was proposed in the initial objectives of this project to use a metallic contact obtained by electroplating. This is desirable in order to obtain high conductivity. Also, regarding to the industrial application of these devices, the electroplating is a very economic process and easy to implement. A number of prototypes of macroporous silicon capacitors of high capacity have been fabricated, until the first stable capacitor was achieved, which also can work unpolarized. The prototype implements properly the original specifications without repair processes. The maximum achieved capacitance is 10μF , measured after aging for over two months. On the other hand, the stable capacitor by manufacturing implements 5,8μF in an area of 95mm2 , without noticeable variations during the same aging time. Implements the stable capacity in amplitude and offset voltage. The series resistance measured is below 1Ω and nevertheless it is still largely improvable through a simple contact optimization. The parallel resistance at direct current is above 1GΩ. All this in a useful volume of 0,03cm3 embedded in a twelfth of a wafer of one square inch, with a stable volumetric capacitance density of 182μF/cm3 . The maximum capacitance density achieved is 10μF/cm2 . The maximum capacity density feasible, with 4μm pitch, is 33μF/cm2 corresponding to an oxide thickness of 20 nm. At this reasonable limit the volumetric capacitance density becomes 1000μF/cm3 within ±20V .

[CATALÀ] L’objectiu del present treball es desenvolupar la fabricació de condensadors de silici macroporós, produir-los i caracteritzar-los. Per a això, com a un dels elèctrodes s'ha utilitzat silici macroporós. Com a segon elèctrode, es va plantejar en els objectius inicials el contacte mitjançant galvanoplàstia. Aquest és convenient per a obtenir alta conductivitat. A més, respecte a la aplicació industrial d’aquests dispositius, la galvanoplàstia és un procés molt econòmic i senzill d’implementar. S’han implementat diversos prototips de condensadors de silici macroporós de gran capacitat, fins a aconseguir el primer condensador estable i, a més, sense polaritat. El prototip implementa correctament les especificacions originals sense processos de reparació. La capacitat màxima aconseguida és de 10μF, mesurat després d’un envelliment superior a dos mesos. D’altra banda, el condensador estable per fabricació implementa 5,8μF en una àrea de 95mm2 , sense variacions durant el mateix temps d’envelliment. Implementa una capacitat estable també en amplitud i offset de tensió. La resistència sèrie mesurada és inferior a 1Ω i àmpliament millorable mitjançant una simple optimització dels contactes. La resistència paral lel en corrent contínua és superior a 1GΩ. Tot això en un volum útil de 0,03cm3 embegut en un dotzè d’oblia d’una polzada cuadrada, amb una densitat capacitiva volumètrica estable de 182μF/cm3 . La màxima densitat capacitiva aconseguida és 10μF/cm2. La màxima densitat capacitiva viable, amb 4μm de pas, és de 33μF/cm2 corresponent a un òxid de 20nm de gruix. En aquest límit raonable la densitat capacitiva volumètrica arriba a 1000μF/cm3 entre ±20V.

Country
Spain
Keywords

ultracapacitores, supercapacitors, macroporous silicon, capacitors, capacity, electroplating, galvanizado, capacidad, silicio poroso, electroquímica, Capacitors, microcapacitors, :Energies::Energia elèctrica [Àrees temàtiques de la UPC], Àrees temàtiques de la UPC::Energies::Energia elèctrica, supercondensadores, porous silicon, electrochemistry, ultracapacitors, silicio macroporoso, microcondensadores, condensadores, Condensadors elèctrics

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
    OpenAIRE UsageCounts
    Usage byUsageCounts
    visibility views 49
    download downloads 64
  • 49
    views
    64
    downloads
    Powered byOpenAIRE UsageCounts
Powered by OpenAIRE graph
Found an issue? Give us feedback
visibility
download
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
OpenAIRE UsageCountsViews provided by UsageCounts
downloads
OpenAIRE UsageCountsDownloads provided by UsageCounts
0
Average
Average
Average
49
64
Green
Related to Research communities