Title of article :
Nb-TiO2/polymer hybrid solar cells with photovoltaic response under inert atmosphere conditions
Author/Authors :
Lira-Cantu، نويسنده , , Monica and Khoda Siddiki، نويسنده , , Mahbube and Muٌoz-Rojas، نويسنده , , David and Amade، نويسنده , , Roger and Gonzلlez-Pech، نويسنده , , Natalia I.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Abstract :
Hybrid Solar Cells (HSC) applying Nb-TiO2 in direct contact with a conducting organic polymer, MEH-PPV, show higher stability than the bare TiO2-based HSC when analyzed under inert atmosphere conditions. IPCE analyses revealed that inert atmospheres affect directly the semiconductor oxide in the first stages of the analyses but photovoltaic performance stabilizes after several hours. A 20 wt% Nb-doped TiO2 presented the highest stability and photovoltaic properties. The behavior has been attributed to the solubility limit of Nb within the TiO2 beyond 20 wt% doping level where the co-existence of NbO2 is observed. The HSCs were analyzed under controlled N2 atmosphere and 1000 W/m2 (AM 1.5) irradiation.
Keywords :
Inert atmospheres , Excitonic solar cells , Inverted organic solar cells , Organic solar cell stability , Hybrid solar cells , Nb-TiO2
Journal title :
Solar Energy Materials and Solar Cells
Journal title :
Solar Energy Materials and Solar Cells
