Ultra-Bright Thin-Film Light Emitting Devices and Lasers

Perovskite LEDs, a thousand times brighter than OLEDs

Autores: -
Publicado en: 2024
Editor: IMEC

Perovskite lasers can lead to exciting new applications

Autores: Iakov Goldberg
Publicado en: 2022
Editor: You tube

Multimode Lasing in All-Solution-Processed UV-Nanoimprinted Distributed Feedback MAPbI3 Perovskite Waveguides

Autores: Iakov Goldberg, Nirav Annavarapu, Simon Leitner, Karim Elkhouly, Fei Han, Niels Verellen, Tibor Kuna, Weiming Qiu, Cedric Rolin, Jan Genoe, Robert Gehlhaar, Paul Heremans
Publicado en: ACS Photonics, Edición 10, 2023, Página(s) 1591-1600, ISSN 2330-4022
Editor: American Chemical Society
DOI: 10.1021/acsphotonics.3c00206

Two-dimensional perovskites with alternating cations in the interlayer space for stable light emitting diodes

Autores: Yiyue Zhang, Masoumeh Keshavarz, Elke Debroye, Eduard Fron, Miriam Candelaria Rodríguez González, Denys Naumenko, Heinz Amenitsch, Joris Van de Vondel, Steven De Feyter, Paul Heremans, Maarten B. J. Roeffaers, Weiming Qiu, Bapi Pradhan and Johan Hofkens
Publicado en: Nanophotonics, Edición 10(8), 2021, Página(s) 2145, ISSN 2192-8614
Editor: De Gruyter
DOI: 10.1515/nanoph-2021-0037

Ion Motion Determines Multiphase Performance Dynamics of Perovskite LEDs

Autores: Jevgenij Chmeliov, Karim Elkhouly, Rokas Gegevičius, Lukas Jonušis, Andrius Devižis, Andrius Gelžinis, Marius Franckevičius, Iakov Goldberg, Johan Hofkens, Paul Heremans, Weiming Qiu and Vidmantas Gulbinas
Publicado en: Adv. Optical Mater., Edición 9 (24), 2021, Página(s) 2101560, ISSN 2195-1071
Editor: WILEY-VCH Verlag GmbH & Co. KGaA
DOI: 10.1002/adom.202101560

Operationally Stable and Efficient CsPbI3–xBrx Perovskite Nanocrystal Light-Emitting Diodes Enabled by Ammonium Ligand Surface Treatment

Autores: Yiyue Zhang, Lata Chouhan, Eduard Fron, Luca Leoncino, Karim Elkhouly, Harshita Bhatia, Weiming Qiu, Maarten B.J. Roeffaers, Johan Hofkens, Elke Debroye, Bapi Pradhan
Publicado en: ACS Photonics, Edición 10, 2023, Página(s) 2774-2783, ISSN 2330-4022
Editor: American Chemical Society
DOI: 10.1021/acsphotonics.3c00480

Intense Electrical Pulsing of Perovskite Light Emitting Diodes under Cryogenic Conditions

Autores: Karim Elkhouly, Iakov Goldberg, Nirav Annavarapu, Robert Gehlhaar, Tung-Huei Ke, Jan Genoe, Johan Hofkens, Paul Heremans, and Weiming Qiu
Publicado en: Adv. Optical Mater., 2022, Página(s) 2200024, ISSN 2195-1071
Editor: WILEY-VCH Verlag GmbH & Co. KGaA
DOI: 10.1002/adom.202200024

Minimizing the Interface-Driven Losses in Inverted Perovskite Solar Cells and Modules

Autores: Xin Zhang, Weiming Qiu, Sofia Apergi, Shivam Singh, Paulo Marchezi, Wenya Song, Christian Sternemann, Karim Elkhouly, Dong Zhang, Aranzazu Aguirre, Tamara Merckx, Anurag Krishna, Yuanyuan Shi, Andrea Bracesco, Cristian van Helvoirt, Frennie Bens, Valerio Zardetto, Jan D’Haen, Anran Yu, Geert Brocks, Tom Aernouts, Ellen Moons, Shuxia Tao, Yiqiang Zhan, Yinghuan Kuang, Jef Poortmans
Publicado en: ACS Energy Letters, Edición 8, 2023, Página(s) 2532-2542, ISSN 2380-8195
Editor: American Chemical Society (ACS)
DOI: 10.1021/acsenergylett.3c00697

Density of States of OLED Host Materials from Thermally Stimulated Luminescence

Autores: Andrei Stankevych, Alexander Vakhnin, Denis Andrienko, Leanne Paterson, Jan Genoe, Ivan Fishchuk, Heinz Bässler, Anna Köhler, Andrey Kadashchuk
Publicado en: Physical Review Applied, Edición 15/4, 2021, Página(s) 44050, ISSN 2331-7019
Editor: American Physical Society (APS)
DOI: 10.1103/physrevapplied.15.044050

Four‐Dimensional Design Space of High‐Q Second‐Order Distributed Feedback Perovskite Lasers

Autores: Nirav Annavarapu, Iakov Goldberg, Sarah Hamdad, Karim Elkhouly, Renaud Puybaret, Deniz Sabuncuoglu Tezcan, Jan Genoe, Robert Gehlhaar, Paul Heremans
Publicado en: Advanced Optical Materials, Edición 12, 2024, ISSN 2195-1071
Editor: WILEY-VCH Verlag GmbH & Co. KGaA
DOI: 10.1002/adom.202302496

Toward Thin‐Film Laser Diodes with Metal Halide Perovskites

Autores: Iakov Goldberg, Karim Elkhouly, Nirav Annavarapu, Sarah Hamdad, Maider Calderon Gonzalez, Jan Genoe, Robert Gehlhaar, Paul Heremans
Publicado en: Advanced Materials, 2024, ISSN 0935-9648
Editor: United Nations Industrial Developement Organization
DOI: 10.1002/adma.202314193

Role of the reorganization energy for charge transport in disordered organic semiconductors

Autores: R. Saxena, V. R. Nikitenko, I. I. Fishchuk, Ya. V. Burdakov, Yu. V. Metel, J. Genoe, H. Bässler, A. Köhler, A. Kadashchuk
Publicado en: Physical Review B, Edición 103/16, 2021, Página(s) 165202, ISSN 2469-9950
Editor: American Physical Society (APS)
DOI: 10.1103/physrevb.103.165202

Scattered Emission Profile Technique for Accurate and Fast Assessment of Optical Gain in Thin Film Lasing Materials

Autores: Nirav Annavarapu, Iakov Goldberg, Athina Papadopoulou, Karim Elkhouly, Jan Genoe, Robert Gehlhaar, Paul Heremans
Publicado en: ACS Photonics, Edición 10, 2023, Página(s) 1583-1590, ISSN 2330-4022
Editor: American Chemical Society
DOI: 10.1021/acsphotonics.3c00204

Operationally Stable Perovskite Light Emitting Diodes with High Radiance

Autores: Karim Elkhouly, Iakov Goldberg, Hans‐Gerd Boyen, Alexis Franquet, Valentina Spampinato, Tung‐Huei Ke, Robert Gehlhaar, Jan Genoe, Johan Hofkens, Paul Heremans, Weiming Qiu
Publicado en: Advanced Optical Materials, Edición 2100586, 2021, Página(s) 2100586, ISSN 2195-1071
Editor: WILEY-VCH Verlag GmbH & Co. KGaA
DOI: 10.1002/adom.202100586

Estimating the Optically Pumped Threshold Fluence of Thin‐Film Gain Media Using Arbitrary Excitation Beams

Autores: Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Sarah Hamdad, Jan Genoe, Robert Gehlhaar, Paul Heremans
Publicado en: Advanced Photonics Research, 2024, ISSN 2699-9293
Editor: WILEY-VCH Verlag GmbH & Co. KGaA
DOI: 10.1002/adpr.202400065

All-Evaporated, All-Inorganic CsPbI3 Perovskite-Based Devices for Broad-Band Photodetector and Solar Cell Applications.

Autores: Maria Isabel Pintor Monroy; Iakov Goldberg; Karim Elkhouly; Epimitheas Georgitzikis; Lotte Clinckemalie; Guillaume Croes; Nirav Annavarapu; Weiming Qiu; Elke Debroye; Yinghuan Kuang; Maarten B. J. Roeffaers; Johan Hofkens; Johan Hofkens; Robert Gehlhaar; Jan Genoe
Publicado en: ACS Appl. Electron. Mater., Edición 3 (7), 2021, Página(s) 3023, ISSN 2637-6113
Editor: American Physical Society (APS)
DOI: 10.1021/acsaelm.1c00252

Electric Field-Induced Quenching of MAPbI3 Photoluminescence in PeLED Architecture

Autores: Rokas Gegevičius, Karim Elkhouly, Marius Franckevičius, Jevgenij Chmeliov, Iakov Goldberg, Robert Gehlhaar, Weiming Qiu, Jan Genoe, Paul Heremans, Vidmantas Gulbinas
Publicado en: ACS Applied Materials & Interfaces, Edición 15, 2024, Página(s) 42784-42791, ISSN 1944-8244
Editor: American Chemical Society
DOI: 10.1021/acsami.3c05880

Double Charge Transfer Dominates in Carrier Localization in Low Bandgap Sites of Heterogeneous Lead Halide Perovskites

Autores: Azhar Fakharuddin, Marius Franckevičius, Andrius Devižis, Andrius Gelžinis, Jevgenij Chmeliov, Paul Heremans, Vidmantas Gulbinas
Publicado en: Advanced Functional Materials, Edición 31/15, 2021, Página(s) 2010076, ISSN 1616-301X
Editor: John Wiley & Sons Ltd.
DOI: 10.1002/adfm.202010076

Perovskite Light Emitting Diode Characteristics: The Effects of Electroluminescence Transient and Hysteresis

Autores: Karim Elkhouly, Robert Gehlhaar, Jan Genoe, Paul Heremans, Weiming Qiu
Publicado en: Advanced Optical Materials, Edición 8/23, 2020, Página(s) 2000941, ISSN 2195-1071
Editor: WILEY-VCH Verlag GmbH & Co. KGaA
DOI: 10.1002/adom.202000941

Electrically assisted amplified spontaneous emission in perovskite light-emitting diodes

Autores: Karim Elkhouly, Iakov Goldberg, Xin Zhang, Nirav Annavarapu, Sarah Hamdad, Guillaume Croes, Cedric Rolin, Jan Genoe, Weiming Qiu, Robert Gehlhaar, Paul Heremans
Publicado en: Nature Photonics, Edición 18, 2024, Página(s) 132-138, ISSN 1749-4885
Editor: Nature Pub. Group
DOI: 10.1038/s41566-023-01341-7

Thermally Activated Delayed Fluorescence Green OLED with 4500 hours Lifetime and 20% External Quantum Efficiency by Optimizing the Emission Zone Using A Single-Emission Spectrum Technique

Autores: Rossa Mac Ciarnáin, Hin Wai Mo, Kaori Nagayoshi, Hiroshi Fujimoto, Kentaro Harada, Robert Gehlhaar, Tung Huei Ke, Paul Heremans, Chihaya Adachi
Publicado en: Adv. Mater., 2022, ISSN 0935-9648
Editor: United Nations Industrial Developement Organization

Active area dependence of optoelectronic characteristics of perovskite LEDs

Autores: Iakov Goldberg; Weiming Qiu; Karim Elkhouly; Nirav Annavarapu; Ankit Nalin Mehta; Cedric Rolin; Tung Huei Ke; Robert Gehlhaar; Jan Genoe; Paul Heremans
Publicado en: J. Mater. Chem. C, Edición 9, 2021, Página(s) 12661, ISSN 2050-7534
Editor: Royal Society of Chemistry
DOI: 10.1039/d1tc03138d

Quasi-bound state in continuum in distributed feedback lasers based on perovskite thin-films

Autores: Sarah Hamdad, Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Renaud Puybaret, Deniz Sabuncuoglu Tezcan, Jan Genoe, Robert Gehlhaar, Paul Heremans
Publicado en: Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XXI, Edición Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XXI, 2024, Página(s) 7
Editor: SPIE
DOI: 10.1117/12.3027790

Effect of Electrodes on the Net Modal Gain of Perovskite Films

Autores: Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Robert Gehlhaar, Jan Genoe, Paul Heremans
Publicado en: International Conference of Electroluminescence and Optoelectronic Devices (ICEL 2022), 2022
Editor: -

Operationally Stable Perovskite Light-Emitting Diodes with High Radiance

Autores: Karim Elkhouly, Iakov Goldberg, Nirav Annavarapu, Robert Gehlhaar, Jan Genoe, Weiming Qiu, and Paul Heremans
Publicado en: Symposium F.EL02—Emerging Light-Emitting Materials and Devices—Halide Perovskites, Quantum Dots and Other Nanoscale Emitters, 2020
Editor: MRS

Continuous-Wave Amplified Spontaneous Emission and High-Current-Density Operation from a Transparent Perovskite LED Architecture

Autores: Karim Elkhouly,Iakov Goldberg,Xin Zhang,Nirav Annavarapu,Weiming Qiu,Cedric Rolin,Jan Genoe,Robert Gehlhaar,Paul Heremans
Publicado en: EN05.14.05 2023 MRS Fall Meeting, 2023
Editor: MRS

External Distributed Feedback Halide Perovskite Lasers Fabricated by High-Throughput UV Nanoimprint Lithography

Autores: Iakov Goldberg, Nirav Annavarapu, Simon Leitner, Robert Gehlhaar, Karim Elkhouly, Cedric Rolin,J an Genoe, Paul Heremans
Publicado en: EL17.01.03 2023 MRS Spring Meeting, 2023
Editor: MRS

Record operational stability and lasing-level current densities enabled by incremental PeLED downscaling

Autores: Iakov Goldberg, Karim Elkhouly, Weiming Qiu, Nirav Annavarapu, Robert Gehlhaar, Cedric Rolin, Tung-Huei Ke, Jan Genoe, and Paul Heremans
Publicado en: Proc. SPIE 11808, Organic and Hybrid Light Emitting Materials and Devices XXV, 2021, Página(s) 1180810
Editor: SPIE
DOI: 10.1117/12.2593010

Distributed Feedback Cavity Optimization of Thin Film Lasers Using Deep-UV Lithography Defined High-Quality Gratings -

Autores: Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Robert Gehlhaar, Jan Genoe, Paul Heremans
Publicado en: EMRS Fall (S03), 2023
Editor: EMRS

Distributed feedback cavity optimization of thin film lasers using deep-UV lithography defined high-quality gratings

Autores: Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Jan Genoe, Robert Gehlhaar, Paul Heremans
Publicado en: Organic and Hybrid Light Emitting Materials and Devices XXVII, 2023, Página(s) 57
Editor: SPIE
DOI: 10.1117/12.2676896

Electrically assisted amplified spontaneous emission in perovskite light-emitting diodes

Autores: Karim Elkhouly
Publicado en: 2024
Editor: FLUXIM

Mitigating the detrimental effects of joule heating for perovskite light emitting diodes

Autores: Weiming Qiu, Karim Elkhouly, Jan Genoe, Paul Heremans
Publicado en: Organic and Hybrid Light Emitting Materials and Devices XXIV, Edición Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 2020, Página(s) 38, ISBN 9781510637535
Editor: SPIE
DOI: 10.1117/12.2567656

Perovskite Light Emitting Diodes with Good Quantum Efficiency at Current Densities of kA/cm2

Autores: Paul Heremans, Iakov Goldberg, Karim Elkhouly, Weiming Qiu, Nirav Annavarapu, Robert Gehlhaar, Cedric Rolin, Tung-Huei Ke, Jan Genoe
Publicado en: IMID 2021, 2021
Editor: SID

Perovskite Light Emitting Diode Characteristics—The Effects of Electroluminescence Transient and Hysteresis

Autores: Karim Elkhouly, Robert Gehlhaar, Jan Genoe, Weiming Qiu, and Paul Heremans
Publicado en: Symposium F.EL02—Emerging Light-Emitting Materials and Devices—Halide Perovskites, Quantum Dots and Other Nanoscale Emitters, 2020
Editor: MRS

Ion Migration Determines the Performance Dynamics of Perovskite LEDs

Autores: Karim Elkhouly, Jevgenij Chmeliov, Rokas Gegevičius, Iakov Goldberg, Vidmantas Gulbinas, Robert Gehlhaar, Jan Genoe, Johan Hofkens, Paul Heremans, Weiming Qiu
Publicado en: Nanoge Fall Meeting, 2021
Editor: nanoGe

Low-Loss Perovskite LEDs for Continuous-Wave Optical Amplified Spontaneous Emission and High-Current-Density Operation

Autores: Iakov Goldberg, Nirav Annavarapu, Simon Leitner, Robert Gehlhaar, Karim Elkhouly, Cedric Rolin,J an Genoe, Paul Heremans
Publicado en: EMRS Fall (S03), 2023
Editor: EMRS

Intense Electrical and Optical Pumping of Perovskite Light Emitting Diode Structures exhibiting Low Stimulated Emission Threshold

Autores: Karim Elkhouly, Iakov Goldberg,Nirav Annavarapu,Robert Gehlhaar,Weiming Qiu, Jan Genoe, Paul Heremans
Publicado en: ICEL 2022 (13th international conference for electroluminescence and optoelectronic devices), 2022
Editor: -

High Current Density (> kA/cm2) Electrical Operation in a Transparent Perovskite LED Architecture with Reduced Amplified Spontaneous Emission Threshold

Autores: Iakov Goldberg,Karim Elkhouly,Nirav Annavarapu,Robert Gehlhaar,Weiming Qiu,Cedric Rolin, Jan Genoe, Paul Heremans
Publicado en: ICEL 2022 (13th international conference for electroluminescence and optoelectronic devices), 2022
Editor: -

Remaining challenges towards high brightness perovskite laser diodes

Autores: Robert Gehlhaar, Karim Elkhouly, Iakov Goldberg, Nirav Annavarapu, Sarah Hamdad, Jan Genoe, Paul Heremans
Publicado en: Organic and Hybrid Light Emitting Materials and Devices XXVIII, 2024, Página(s) 9
Editor: SPIE
DOI: 10.1117/12.3027763

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