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Synthèse et propriétés de monocristaux, de poudres, films minces ou hétérostructures

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LMGP Seminar : Dr. Liang TIAN - Nitrogen-doped TiO2 by atomic layer deposition for energy applications

Published on March 24, 2014
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Seminar April 8, 2014
Tuesday at 2:00 pm - LMGP Conference room - 2nd floor
LMGP (UMR 5628 CNRS / Grenoble INP)
3 parvis Louis Néel - 38000 Grenoble

Accès : TRAM B arrêt Cité internationale

Free entrance - No registration
Liang Tian.jpg

Liang Tian.jpg

Dr. Liang TIAN
Post-Doc au LMGP - (FM2N Team – Supervisors : J. L. Deschanvres & H. Renevier)

Nitrogen-doped TiO2 by atomic layer deposition for energy applications

Abstract
Nitrogen-doped TiO2 is well-known for improving photocatalysis properties of undoped TiO2.
However, in this project project carried out at SiMaP (Saint Martin d’Hères, France), , we are looking at fabricating three-dimensional transparent TiO2 based p-n junctions for solar cell and light emitting diode applications. This raises two challenges: conformal coating of the high-aspect ratio template and efficient p-type doping of the TiO2 thin layers. Such a doping is achieved with Nitrogen-doped TiO2. We are showing that the conductivity type is a function of the thickness which relates to a given morphology and phases present in the TiO2  thin layers. A minimum resistivity of 20 ? cm is eventually obtained.

Architecture of the TiO2 based p-n junctions for solar cells

Short Biography
Liang Tian was educated at the University of Bristol, UK (Msc 2004) and the University of Birmingham, UK (PhD 2008). Afterwards, she worked as a research scientist at 3-Cs Ltd., Malvern (UK) and then as a post-doc at SiMaP, Grenoble (France). Currently, she is working on the MOON project at LMGP, Grenoble. Her research focuses on thin film depositions and characterisations.

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Date of update March 25, 2014

  • Tutelle CNRS
  • Tutelle Grenoble INP
Univ. Grenoble Alpes