Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
InN/InGaN quantum dot photoelectrode: Efficient Hydrogen generation by water splitting at zero voltage
Year:2015
Research Areas
  • Physics - Structure of materials,
  • Physics - Semiconductors and band structure
Information
Abstract
Light to hydrogen conversion via water splitting is of immense interest as a clean, storable, and renewable energy source (Tachibana et al., 2012 [1];Maeda andDomen,2010 [2]; van de Krol et al., 2008 [3]; van Dorp et al., 2009 [4];Kudo andMiseki,2009 [5]) but efficientmaterials need to be found. To solve, InGaN has properties ideally suited and we demonstrate here that epitaxial InN quantum dots (QDs) more than double the photoelectrochemical (PEC) water splitting efficiency of an In0.54Ga0.46N photoelectrode. The InN/In0.54Ga0.46N-QDs-photoelectrode reveals a maximum incident-photon-to- current-conversion efficiency (IPCE) of up to 56% at a wavelength of 600 nmwith hydrogen generation rate of 133 mmol h?1 cm?2 at zero voltage under illumination of a 1000W Xenon arc lamp. The bare In0.54Ga0.46N-layer-photoelectrode reveals a much lower IPCE of 24% with hydrogen generation rate of 59 mmol h?1 cm?2.
International
Si
JCR
Si
Title
Nano Energy
ISBN
2211-2855
Impact factor JCR
10,325
Impact info
Datos JCR del año 2014
Volume
10.1016/j.nanoen.2015.02.017
Journal number
From page
291
To page
297
Month
SIN MES
Ranking
Participants
  • Autor: Naveed Ul Hassan Alvi (UPM)
  • Autor: Paul Soto Rodriguez (UPM)
  • Autor: Pavel Aseev (UPM)
  • Autor: Victor Jesus Gomez Hernandez (UPM)
  • Autor: Ameed ul ul Hassan Alvi (University of Agriculture)
  • Autor: Waheed ul Hassan (Bahauddin Zakariya University)
  • Autor: Magnus Willander (Linköping University)
  • Autor: Richard Notzel . (UPM)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Ingeniería Electrónica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)