Concept
Efficacité quantique
Publications associées (364)
Pulsed magnetic resonance of Alq3 OLED detected by electroluminescence
Jean-Philippe Ansermet, Francesco Comandè
The aim of the present work is to investigate the nature of spin dependent processes in an organic light emitting diode based on a ITO/α-NPD/Alq3 structure. The electroluminescence time response of the sample is monitored while the OLED is exposed to a hig ...
Elsevier2013The role of insulating oxides in blocking the charge carrier recombination in dye-sensitized solar cell
Michael Graetzel, Mohammad Khaja Nazeeruddin, Aravind Kumar Chandiran
Electron recombination is one of the major loss factors in dye-sensitized solar cells (DSC), especially, with single electron outer sphere redox shuttle electrolyte. Insulating sub-nanometer oxide tunneling layers deposited by atomic layer deposition (ALD) ...
Wiley-Blackwell2013High-performance tandem silicon solar cells on F:SnO2
Christophe Ballif, Sylvain Nicolay, Laura Ding
High-performance transparent conducting oxides (TCOs) have significance for optimising PV performance. The efficiency of the resulting solar cells is dependent particularly on achieving high light scattering, low resistivity and low absorption (via low fre ...
Elsevier2013>21% Efficient Silicon Heterojunction Solar Cells on n- and p-Type Wafers Compared
Christophe Ballif, Antoine Descoeudres, Stefaan De Wolf, Loris Barraud
The properties and high-efficiency potential of frontand rear-emitter silicon heterojunction solar cells on n- and p-type wafers were experimentally investigated. In the low-carrierinjection range, cells on p-type wafers suffer from reduced minority carrie ...
Ieee-Inst Electrical Electronics Engineers Inc2013Cobalt(II/III) redox electrolyte in ZnO nanowire-based dye-sensitized solar cells
In this work, we explore the use of cobalt complex redox shuttles in dye sensitized solar cells (DSCs) based on ZnO nanowires (NWs). Arrays of vertically aligned ZnO NWs produced by a low-cost hydrothermal method are used to fabricate DSCs with [Co(bpy)3]2 ...
2013Long-Range Balanced Electron- and Hole-Transport Lengths in Organic-Inorganic CH3NH3PbI3
Michael Graetzel, Nripan Mathews
Low-temperature solution-processed photovoltaics suffer from low efficiencies because of poor exciton or electron-hole diffusion lengths (typically about 10 nanometers). Recent reports of highly efficient CH3NH3PbI3-based solar cells in a broad range of co ...
American Association for the Advancement of Science2013A new terpyridine cobalt complex redox shuttle for dye-sensitized solar cells
Mohammad Khaja Nazeeruddin, Filippo de Angelis, Gabriele Marotta
A new cobalt-terpyridine redox shuttle (Co(Cl-phenyl-terpyridine)(2)) has been synthesized, characterized, computationally investigated and then tested in photovoltaic devices, in conjunction with the prototypical N719 and Z907 ruthenium dyes. Low ...
Elsevier2013The Role of p Bridges in High-Efficiency DSCs Based on Unsymmetrical Squaraines
Michael Graetzel, Mohammad Khaja Nazeeruddin, Jun Ho Yum, Elisa Dell'Orto
A series of squaraine-based sensitizers with various p bridges and anchors were prepared and examined in dye-sensitized solar cells. The carboxylic anchor group was attached onto a squaraine dye through p bridges with and without an ethynyl spacer. DFT stu ...
Wiley-Blackwell2013Effect of Different Hole Transport Materials on Recombination in CH3NH3PbI3 Perovskite-Sensitized Mesoscopic Solar Cells
Ulf Anders Hagfeldt, Lin Yang, Dongqin Bi
We report on perovskite (CH3NH3)PbI3-sensitized solid-state solar cells using spiro-OMeTAD, poly(3-hexylthiophene-2,5-diyl) (P3HT) and 4-(diethylamino)benzaldehyde diphenylhydrazone (DEH) as hole transport materials with a light to electricity power conver ...
2013