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On the Response Speed of Narrowband Organic Optical Upconversion Devices

Publications associées (60)

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An Indium-Free Anode for Large-Area Flexible OLEDs: Defect-Free Transparent Conductive Zinc Tin Oxide

Christophe Ballif, Aïcha Hessler-Wyser, Quentin Thomas Jeangros, Monica Morales Masis, Ali Dabirian, Fabien Paul Jacques Dauzou

Flexible large-area organic light-emitting diodes (OLEDs) require highly conductive and transparent anodes for efficient and uniform light emission. Tin-doped indium oxide (ITO) is the standard anode in industry. However, due to the scarcity of indium, alt ...

Wiley-Blackwell2016

Molecular Engineering of Iridium Blue Emitters Using Aryl N-Heterocyclic Carbene Ligands

Mohammad Khaja Nazeeruddin, Iwan Zimmermann, Giulia Grancini, Aron Joel Huckaba, Sadig Aghazada

The synthesis of a new series of neutral bis[2-(2,4-difluorophen-2-yl)pyridine][1-(2-aryl)-3-methylimidazol-2-ylidene]iridium(III) complexes is reported. Each complex has been characterized by NMR spectroscopy, UV/Vis spectrophotometry, and cyclic voltamme ...

Wiley-Blackwell2016

Ruthenium phenanthroimidazole complexes for near infrared light-emitting electrochemical cells

Mohammad Khaja Nazeeruddin, Cristina Roldán Carmona

By adding different electron donor moieties to the ancillary ligand in ruthenium(II) phenanthroimidazole complexes, we successfully designed near infrared light emitting complexes suitable for light emitting electro-chemical cells (LECs). By using a single ...

Royal Society of Chemistry2016

Low-voltage, high-brightness and deep-red light-emitting electrochemical cells (LECs) based on new ruthenium(II) phenanthroimidazole complexes

Mohammad Khaja Nazeeruddin, Cristina Roldán Carmona

Light-Emitting Electrochemical Cells (LECs) with a simple device structure ITO/Ru complex/Ga: In were prepared by using heteroleptic ruthenium(II) complexes containing 2-(2-hydroxyphenyl)-1(4-bromophenyl)-1h-imidazo[4,5-f][1,10] phenanthroline (hpbpip) as ...

Royal Society of Chemistry2016

Organic photodetectors are interesting for low cost, large area optical sensing applications. Combining organic semiconductors with discrete absorption bands outside the visible wavelength range with transparent and conductive electrodes allows for the fab ...

Nature Publishing Group2015

Spin processes and charge dynamics in organic light emitting diodes

Francesco Comandè

In this thesis work we explore spin dependent processes and charge dynamics in α-NPD/Alq₃ based LEDs. Studies on polymer light emitting diodes based on PFO, which are fabricated by us, are also reported. Our objective is to shed light on the fundamental me ...

EPFL2014

Thin Film Metal Nanocluster Light-Emitting Devices

Björn Niesen

Light-emitting devices that utilize thin films of metal nanoclusters as quantum emitters are presented. Implementing Ag as well as Au nanoclusters, the versatility of the approach is demonstrated, and it is shown that the electroluminescence measured from ...

Wiley-V C H Verlag Gmbh2014

Host-guest blue light-emitting electrochemical cast

Mohammad Khaja Nazeeruddin

Carbazole, a commonly used hole-transporter for organic electronics, has been modified with an imidazolium cation and a hexafluorophosphate counter-anion to give an ionic hole-transporter. It has been applied as one of the hosts in a host-guest blue light- ...

Royal Society of Chemistry2014

Polycrystalline zinc oxide (ZnO) films, prepared by low-pressure chemical vapor deposition are investigated in this thesis. ZnO belongs to the class of transparent conductive oxide materials, as it is transparent to light from the visible to the near-infra ...

EPFL2013

Laser-induced forward transfer (LIFT) has already been used to fabricate various types of organic light-emitting diodes (OLEDs), and the process itself has been optimised and refined considerably since OLED pixels were first demonstrated. In particular, a ...

Elsevier Science Bv2013