Highly conductive p++-AlGaAs/n++-GaInP tunnel junctions for operation up to 15,000 suns in concentrator solar cells


Autoria(s): Barrutia Poncela, Laura; Barrigón Montañés, Enrique; García Vara, Iván; Rey-Stolle Prado, Ignacio; Algora del Valle, Carlos
Data(s)

01/10/2014

Resumo

In the last few decades there has been great interest in III-V multijunction solar cells (MJSC) for concentrator applications due to their promise to significantly reduce the cost of electricity. Being formed by series connection of several solar cells with different bandgaps, a key role in a MJSC structure is played by the tunnel junctions (TJ) aimed to implement such series connection. Essentially, tunnel junctions (tunnel diodes or Esaki diodes) are thin, heavily doped p-n junctions where quantum tunneling plays a key role as a conduction mechanism. Such devices were discovered by Nobel laureate Leo Esaki at the end of 1950. The key feature of tunnel junctions for their application in MJSC is that, as long as quantum tunneling is the dominant conduction mechanism, they exhibit a linear I-V dependence until the peak tunneling current (Jp) is reached. This initial ohmic region in the I-V curve is ideal for implementing low-loss interconnections between the subcells with different energy bandgaps that constitute a MJSC.

Formato

application/pdf

Identificador

http://oa.upm.es/37387/

Idioma(s)

eng

Publicador

E.T.S.I. Telecomunicación (UPM)

Relação

http://oa.upm.es/37387/1/INVE_MEM_2014_190383.pdf

http://www.semiconductor-today.com/features/PDF/SemiconductorToday_October2014-Highly-conductive.pdf

IPT-2011-1441-920000

TEC2011-28639-C02-01

IPT-2011-1408-420000

info:eu-repo/grantAgreement/EC/FP7/EC/FP7/283798

info:eu-repo/grantAgreement/EC/FP7/EC/FP7/299878

Direitos

http://creativecommons.org/licenses/by-nc-nd/3.0/es/

info:eu-repo/semantics/openAccess

Fonte

Semiconductor today: Compounds & Advanced Silicon, ISSN 1752-2935, 2014-10, Vol. 9, No. 8

Palavras-Chave #Electrónica #Telecomunicaciones
Tipo

info:eu-repo/semantics/article

Artículo

PeerReviewed