Ultra-Bright Thin-Film Light Emitting Devices and Lasers

Perovskite LEDs, a thousand times brighter than OLEDs

Autori: -
Pubblicato in: 2024
Editore: IMEC

Perovskite lasers can lead to exciting new applications

Autori: Iakov Goldberg
Pubblicato in: 2022
Editore: You tube

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

Autori: Iakov Goldberg, Nirav Annavarapu, Simon Leitner, Karim Elkhouly, Fei Han, Niels Verellen, Tibor Kuna, Weiming Qiu, Cedric Rolin, Jan Genoe, Robert Gehlhaar, Paul Heremans
Pubblicato in: ACS Photonics, Numero 10, 2023, Pagina/e 1591-1600, ISSN 2330-4022
Editore: American Chemical Society
DOI: 10.1021/acsphotonics.3c00206

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

Autori: 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
Pubblicato in: Nanophotonics, Numero 10(8), 2021, Pagina/e 2145, ISSN 2192-8614
Editore: De Gruyter
DOI: 10.1515/nanoph-2021-0037

Ion Motion Determines Multiphase Performance Dynamics of Perovskite LEDs

Autori: 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
Pubblicato in: Adv. Optical Mater., Numero 9 (24), 2021, Pagina/e 2101560, ISSN 2195-1071
Editore: 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

Autori: Yiyue Zhang, Lata Chouhan, Eduard Fron, Luca Leoncino, Karim Elkhouly, Harshita Bhatia, Weiming Qiu, Maarten B.J. Roeffaers, Johan Hofkens, Elke Debroye, Bapi Pradhan
Pubblicato in: ACS Photonics, Numero 10, 2023, Pagina/e 2774-2783, ISSN 2330-4022
Editore: American Chemical Society
DOI: 10.1021/acsphotonics.3c00480

Intense Electrical Pulsing of Perovskite Light Emitting Diodes under Cryogenic Conditions

Autori: Karim Elkhouly, Iakov Goldberg, Nirav Annavarapu, Robert Gehlhaar, Tung-Huei Ke, Jan Genoe, Johan Hofkens, Paul Heremans, and Weiming Qiu
Pubblicato in: Adv. Optical Mater., 2022, Pagina/e 2200024, ISSN 2195-1071
Editore: WILEY-VCH Verlag GmbH & Co. KGaA
DOI: 10.1002/adom.202200024

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

Autori: 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
Pubblicato in: ACS Energy Letters, Numero 8, 2023, Pagina/e 2532-2542, ISSN 2380-8195
Editore: American Chemical Society (ACS)
DOI: 10.1021/acsenergylett.3c00697

Density of States of OLED Host Materials from Thermally Stimulated Luminescence

Autori: Andrei Stankevych, Alexander Vakhnin, Denis Andrienko, Leanne Paterson, Jan Genoe, Ivan Fishchuk, Heinz Bässler, Anna Köhler, Andrey Kadashchuk
Pubblicato in: Physical Review Applied, Numero 15/4, 2021, Pagina/e 44050, ISSN 2331-7019
Editore: American Physical Society (APS)
DOI: 10.1103/physrevapplied.15.044050

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

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

Toward Thin‐Film Laser Diodes with Metal Halide Perovskites

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

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

Autori: R. Saxena, V. R. Nikitenko, I. I. Fishchuk, Ya. V. Burdakov, Yu. V. Metel, J. Genoe, H. Bässler, A. Köhler, A. Kadashchuk
Pubblicato in: Physical Review B, Numero 103/16, 2021, Pagina/e 165202, ISSN 2469-9950
Editore: 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

Autori: Nirav Annavarapu, Iakov Goldberg, Athina Papadopoulou, Karim Elkhouly, Jan Genoe, Robert Gehlhaar, Paul Heremans
Pubblicato in: ACS Photonics, Numero 10, 2023, Pagina/e 1583-1590, ISSN 2330-4022
Editore: American Chemical Society
DOI: 10.1021/acsphotonics.3c00204

Operationally Stable Perovskite Light Emitting Diodes with High Radiance

Autori: Karim Elkhouly, Iakov Goldberg, Hans‐Gerd Boyen, Alexis Franquet, Valentina Spampinato, Tung‐Huei Ke, Robert Gehlhaar, Jan Genoe, Johan Hofkens, Paul Heremans, Weiming Qiu
Pubblicato in: Advanced Optical Materials, Numero 2100586, 2021, Pagina/e 2100586, ISSN 2195-1071
Editore: 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

Autori: Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Sarah Hamdad, Jan Genoe, Robert Gehlhaar, Paul Heremans
Pubblicato in: Advanced Photonics Research, 2024, ISSN 2699-9293
Editore: 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.

Autori: 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
Pubblicato in: ACS Appl. Electron. Mater., Numero 3 (7), 2021, Pagina/e 3023, ISSN 2637-6113
Editore: American Physical Society (APS)
DOI: 10.1021/acsaelm.1c00252

Electric Field-Induced Quenching of MAPbI3 Photoluminescence in PeLED Architecture

Autori: Rokas Gegevičius, Karim Elkhouly, Marius Franckevičius, Jevgenij Chmeliov, Iakov Goldberg, Robert Gehlhaar, Weiming Qiu, Jan Genoe, Paul Heremans, Vidmantas Gulbinas
Pubblicato in: ACS Applied Materials & Interfaces, Numero 15, 2024, Pagina/e 42784-42791, ISSN 1944-8244
Editore: American Chemical Society
DOI: 10.1021/acsami.3c05880

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

Autori: Azhar Fakharuddin, Marius Franckevičius, Andrius Devižis, Andrius Gelžinis, Jevgenij Chmeliov, Paul Heremans, Vidmantas Gulbinas
Pubblicato in: Advanced Functional Materials, Numero 31/15, 2021, Pagina/e 2010076, ISSN 1616-301X
Editore: John Wiley & Sons Ltd.
DOI: 10.1002/adfm.202010076

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

Autori: Karim Elkhouly, Robert Gehlhaar, Jan Genoe, Paul Heremans, Weiming Qiu
Pubblicato in: Advanced Optical Materials, Numero 8/23, 2020, Pagina/e 2000941, ISSN 2195-1071
Editore: WILEY-VCH Verlag GmbH & Co. KGaA
DOI: 10.1002/adom.202000941

Electrically assisted amplified spontaneous emission in perovskite light-emitting diodes

Autori: Karim Elkhouly, Iakov Goldberg, Xin Zhang, Nirav Annavarapu, Sarah Hamdad, Guillaume Croes, Cedric Rolin, Jan Genoe, Weiming Qiu, Robert Gehlhaar, Paul Heremans
Pubblicato in: Nature Photonics, Numero 18, 2024, Pagina/e 132-138, ISSN 1749-4885
Editore: 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

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

Active area dependence of optoelectronic characteristics of perovskite LEDs

Autori: Iakov Goldberg; Weiming Qiu; Karim Elkhouly; Nirav Annavarapu; Ankit Nalin Mehta; Cedric Rolin; Tung Huei Ke; Robert Gehlhaar; Jan Genoe; Paul Heremans
Pubblicato in: J. Mater. Chem. C, Numero 9, 2021, Pagina/e 12661, ISSN 2050-7534
Editore: Royal Society of Chemistry
DOI: 10.1039/d1tc03138d

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

Autori: Sarah Hamdad, Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Renaud Puybaret, Deniz Sabuncuoglu Tezcan, Jan Genoe, Robert Gehlhaar, Paul Heremans
Pubblicato in: Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XXI, Numero Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XXI, 2024, Pagina/e 7
Editore: SPIE
DOI: 10.1117/12.3027790

Effect of Electrodes on the Net Modal Gain of Perovskite Films

Autori: Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Robert Gehlhaar, Jan Genoe, Paul Heremans
Pubblicato in: International Conference of Electroluminescence and Optoelectronic Devices (ICEL 2022), 2022
Editore: -

Operationally Stable Perovskite Light-Emitting Diodes with High Radiance

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

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

Autori: Karim Elkhouly,Iakov Goldberg,Xin Zhang,Nirav Annavarapu,Weiming Qiu,Cedric Rolin,Jan Genoe,Robert Gehlhaar,Paul Heremans
Pubblicato in: EN05.14.05 2023 MRS Fall Meeting, 2023
Editore: MRS

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

Autori: Iakov Goldberg, Nirav Annavarapu, Simon Leitner, Robert Gehlhaar, Karim Elkhouly, Cedric Rolin,J an Genoe, Paul Heremans
Pubblicato in: EL17.01.03 2023 MRS Spring Meeting, 2023
Editore: MRS

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

Autori: Iakov Goldberg, Karim Elkhouly, Weiming Qiu, Nirav Annavarapu, Robert Gehlhaar, Cedric Rolin, Tung-Huei Ke, Jan Genoe, and Paul Heremans
Pubblicato in: Proc. SPIE 11808, Organic and Hybrid Light Emitting Materials and Devices XXV, 2021, Pagina/e 1180810
Editore: SPIE
DOI: 10.1117/12.2593010

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

Autori: Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Robert Gehlhaar, Jan Genoe, Paul Heremans
Pubblicato in: EMRS Fall (S03), 2023
Editore: EMRS

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

Autori: Nirav Annavarapu, Iakov Goldberg, Karim Elkhouly, Jan Genoe, Robert Gehlhaar, Paul Heremans
Pubblicato in: Organic and Hybrid Light Emitting Materials and Devices XXVII, 2023, Pagina/e 57
Editore: SPIE
DOI: 10.1117/12.2676896

Electrically assisted amplified spontaneous emission in perovskite light-emitting diodes

Autori: Karim Elkhouly
Pubblicato in: 2024
Editore: FLUXIM

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

Autori: Weiming Qiu, Karim Elkhouly, Jan Genoe, Paul Heremans
Pubblicato in: Organic and Hybrid Light Emitting Materials and Devices XXIV, Numero Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 2020, Pagina/e 38, ISBN 9781510637535
Editore: SPIE
DOI: 10.1117/12.2567656

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

Autori: Paul Heremans, Iakov Goldberg, Karim Elkhouly, Weiming Qiu, Nirav Annavarapu, Robert Gehlhaar, Cedric Rolin, Tung-Huei Ke, Jan Genoe
Pubblicato in: IMID 2021, 2021
Editore: SID

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

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

Ion Migration Determines the Performance Dynamics of Perovskite LEDs

Autori: Karim Elkhouly, Jevgenij Chmeliov, Rokas Gegevičius, Iakov Goldberg, Vidmantas Gulbinas, Robert Gehlhaar, Jan Genoe, Johan Hofkens, Paul Heremans, Weiming Qiu
Pubblicato in: Nanoge Fall Meeting, 2021
Editore: nanoGe

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

Autori: Iakov Goldberg, Nirav Annavarapu, Simon Leitner, Robert Gehlhaar, Karim Elkhouly, Cedric Rolin,J an Genoe, Paul Heremans
Pubblicato in: EMRS Fall (S03), 2023
Editore: EMRS

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

Autori: Karim Elkhouly, Iakov Goldberg,Nirav Annavarapu,Robert Gehlhaar,Weiming Qiu, Jan Genoe, Paul Heremans
Pubblicato in: ICEL 2022 (13th international conference for electroluminescence and optoelectronic devices), 2022
Editore: -

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

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

Remaining challenges towards high brightness perovskite laser diodes

Autori: Robert Gehlhaar, Karim Elkhouly, Iakov Goldberg, Nirav Annavarapu, Sarah Hamdad, Jan Genoe, Paul Heremans
Pubblicato in: Organic and Hybrid Light Emitting Materials and Devices XXVIII, 2024, Pagina/e 9
Editore: SPIE
DOI: 10.1117/12.3027763

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