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Hierarchically Engineered Inorganic Nanomaterials from the atomic to supra-nanocrystalline level as a novel platform for SOLution Processed SOLar cells

Publications

Highly efficient, ultrathin, Cd-free kesterite solar cells in superstrate configuration enabled by band level tuning via Ag incorporation

Author(s): Zhuoran Wang, Yongjie Wang, Gerasimos Konstantatos
Published in: NANO ENERGY, 94, 2022, Page(s) 106898, ISSN 2211-2855
Publisher: Elsevier BV
DOI: 10.1016/j.nanoen.2021.106898

Ag 2 ZnSnS 4 –ZnS core–shell colloidal quantum dots: a near-infrared luminescent material based on environmentally friendly elements

Author(s): Avijit Saha, Gerasimos Konstantatos
Published in: Journal of Materials Chemistry C, 9/17, 2021, Page(s) 5682-5688, ISSN 2050-7534
Publisher: Royal Society of Chemistry
DOI: 10.1039/d1tc00421b

Cation Disorder and Local Structural Distortions in AgxBi1–xS2 Nanoparticles

Author(s): Jagadesh Kopula Kesavan, Francesco d’Acapito, Paolo Scardi, Alexandros Stavrinadis, Mehmet Zafer Akgul, Ignasi Burgués-Ceballos, Gerasimos Konstantatos, Federico Boscherini
Published in: Nanomaterials, 10/2, 2020, Page(s) 316, ISSN 2079-4991
Publisher: MDPI
DOI: 10.3390/nano10020316

Low-Threshold, Highly Stable Colloidal Quantum Dot Short-Wave Infrared Laser enabled by Suppression of Trap-Assisted Auger Recombination

Author(s): Nima Taghipour, Guy L. Whitworth, Mariona Dalmases, Santanu Pradhan, Yongjie Wang, Gaurav Kumar, Gerasimos Konstantatos, Andreas Othonos
Published in: ADVANCED MATERIALS, 34, 2022, Page(s) 2107532, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.202107532

Highly Efficient, Bright, and Stable Colloidal Quantum Dot Short‐Wave Infrared Light‐Emitting Diodes

Author(s): Santanu Pradhan, Mariona Dalmases, Ayse‐Bilgehan Baspinar, Gerasimos Konstantatos
Published in: Advanced Functional Materials, 30/39, 2020, Page(s) 2004445, ISSN 1616-301X
Publisher: John Wiley & Sons Ltd.
DOI: 10.1002/adfm.202004445

Colloidal synthesis of lead-free Cs 2 TiBr 6− x I x perovskite nanocrystals

Author(s): Shanti Maria Liga, Gerasimos Konstantatos
Published in: Journal of Materials Chemistry C, 9/34, 2021, Page(s) 11098-11103, ISSN 2050-7534
Publisher: Royal Society of Chemistry
DOI: 10.1039/d1tc01732b

Solution-processed PbS quantum dot infrared laser with room-temperature tunable emission in the optical telecommunications window

Author(s): G. L. Whitworth, Mariona Dalmases, N. Taghipour, G. Konstantatos
Published in: NATURE PHOTONICS, 15, 2021, Page(s) 738, ISSN 1749-4885
Publisher: Nature Pub. Group
DOI: 10.1038/s41566-021-00878-9

Single-Exciton Gain and Stimulated Emission Across the Infrared Telecom Band from Robust Heavily Doped PbS Colloidal Quantum Dots

Author(s): Sotirios Christodoulou, Iñigo Ramiro, Andreas Othonos, Alberto Figueroba, Mariona Dalmases, Onur Özdemir, Santanu Pradhan, Grigorios Itskos, Gerasimos Konstantatos
Published in: Nano Letters, 20/8, 2020, Page(s) 5909-5915, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.0c01859

Hybrid 2D-QD MoS2-PbSe Quantum Dot Broadband Photodetectors with High-Sensitivity and Room-Temperature Operation at 2.5 mu m

Author(s): Biswajit Kundu,Onur Özdemir,Mariona Dalmases,Gaurav Kumar,Gerasimos Konstantatos
Published in: ADVANCED OPTICAL MATERIALS, 9, 2021, Page(s) 2101378, ISSN 2195-1071
Publisher: Wiley-Blackwell
DOI: 10.1002/adom.202101378

Size- and Temperature-Dependent Intraband Optical Properties of Heavily n-Doped PbS Colloidal Quantum Dot Solid-State Films

Author(s): Iñigo Ramiro, Biswajit Kundu, Mariona Dalmases, Onur Özdemir, María Pedrosa, Gerasimos Konstantatos
Published in: ACS Nano, 14/6, 2020, Page(s) 7161-7169, ISSN 1936-0851
Publisher: American Chemical Society
DOI: 10.1021/acsnano.0c02033

On-Demand Activation of Photochromic Nanoheaters for High Color Purity 3D Printing

Author(s): Alexander W. Powell, Alexandros Stavrinadis, Sotirios Christodoulou, Romain Quidant, Gerasimos Konstantatos
Published in: Nano Letters, 20/5, 2020, Page(s) 3485-3491, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.0c00414

Trap-State Suppression and Improved Charge Transport in PbS Quantum Dot Solar Cells with Synergistic Mixed-Ligand Treatments

Author(s): Santanu Pradhan, Alexandros Stavrinadis, Shuchi Gupta, Yu Bi, Francesco Di Stasio, Gerasimos Konstantatos
Published in: Small, 13/21, 2017, Page(s) 1700598, ISSN 1613-6810
Publisher: Wiley - V C H Verlag GmbbH & Co.
DOI: 10.1002/smll.201700598

Reducing Interface Recombination through Mixed Nanocrystal Interlayers in PbS Quantum Dot Solar Cells

Author(s): Santanu Pradhan, Alexandros Stavrinadis, Shuchi Gupta, Gerasimos Konstantatos
Published in: ACS Applied Materials & Interfaces, 9/33, 2017, Page(s) 27390-27395, ISSN 1944-8244
Publisher: American Chemical Society
DOI: 10.1021/acsami.7b08568

Suppressing Deep Traps in PbS Colloidal Quantum Dots via Facile Iodide Substitutional Doping for Solar Cells with Efficiency >10%

Author(s): Alexandros Stavrinadis, Santanu Pradhan, Paris Papagiorgis, Grigorios Itskos, Gerasimos Konstantatos
Published in: ACS Energy Letters, 2/4, 2017, Page(s) 739-744, ISSN 2380-8195
Publisher: ACS
DOI: 10.1021/acsenergylett.7b00091

Breaking the Open-Circuit Voltage Deficit Floor in PbS Quantum Dot Solar Cells through Synergistic Ligand and Architecture Engineering

Author(s): Santanu Pradhan, Alexandros Stavrinadis, Shuchi Gupta, Sotirios Christodoulou, Gerasimos Konstantatos
Published in: ACS Energy Letters, 2/6, 2017, Page(s) 1444-1449, ISSN 2380-8195
Publisher: ACS
DOI: 10.1021/acsenergylett.7b00244

Near-Unity Photoluminescence Quantum Yield in CsPbBr 3 Nanocrystal Solid-State Films via Postsynthesis Treatment with Lead Bromide

Author(s): Francesco Di Stasio, Sotirios Christodoulou, Nengjie Huo, Gerasimos Konstantatos
Published in: Chemistry of Materials, 29/18, 2017, Page(s) 7663-7667, ISSN 0897-4756
Publisher: American Chemical Society
DOI: 10.1021/acs.chemmater.7b02834

Low-temperature colloidal synthesis of CuBiS 2 nanocrystals for optoelectronic devices

Author(s): Jian-Jun Wang, Mehmet Zafer Akgul, Yu Bi, Sotirios Christodoulou, Gerasimos Konstantatos
Published in: Journal of Materials Chemistry A, 5/47, 2017, Page(s) 24621-24625, ISSN 2050-7488
Publisher: Royal Society of Chemistry
DOI: 10.1039/c7ta08078f

Matildite Contact with Media: First-Principles Study of AgBiS 2 Surfaces and Nanoparticle Morphology

Author(s): Francesc Viñes, Gerasimos Konstantatos, Francesc Illas
Published in: The Journal of Physical Chemistry B, 122/2, 2017, Page(s) 521-526, ISSN 1520-6106
Publisher: American Chemical Society
DOI: 10.1021/acs.jpcb.7b03967

Infrared Solution-Processed Quantum Dot Solar Cells Reaching External Quantum Efficiency of 80% at 1.35 µm and J sc in Excess of 34 mA cm −2

Author(s): Yu Bi, Santanu Pradhan, Shuchi Gupta, Mehmet Zafer Akgul, Alexandros Stavrinadis, Gerasimos Konstantatos
Published in: Advanced Materials, 30/7, 2018, Page(s) 1704928, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201704928

Colloidal Quantum Dot Tandem Solar Cells Using Chemical Vapor Deposited Graphene as an Atomically Thin Intermediate Recombination Layer

Author(s): Yu Bi, Santanu Pradhan, Mehmet Zafer Akgul, Shuchi Gupta, Alexandros Stavrinadis, Jianjun Wang, Gerasimos Konstantatos
Published in: ACS Energy Letters, 3/7, 2018, Page(s) 1753-1759, ISSN 2380-8195
Publisher: ACS ENERGY LETTERS
DOI: 10.1021/acsenergylett.8b00675

High-Efficiency Light-Emitting Diodes Based on Formamidinium Lead Bromide Nanocrystals and Solution Processed Transport Layers

Author(s): Francesco Di Stasio, Iñigo Ramiro, Yu Bi, Sotirios Christodoulou, Alexandros Stavrinadis, Gerasimos Konstantatos
Published in: Chemistry of Materials, 30/18, 2018, Page(s) 6231-6235, ISSN 0897-4756
Publisher: American Chemical Society
DOI: 10.1021/acs.chemmater.8b03079

High-efficiency colloidal quantum dot infrared light-emitting diodes via engineering at the supra-nanocrystalline level

Author(s): Santanu Pradhan, Francesco Di Stasio, Yu Bi, Shuchi Gupta, Sotirios Christodoulou, Alexandros Stavrinadis, Gerasimos Konstantatos
Published in: Nature Nanotechnology, 14/1, 2019, Page(s) 72-79, ISSN 1748-3387
Publisher: Nature Publishing Group
DOI: 10.1038/s41565-018-0312-y

Solution processed infrared- and thermo-photovoltaics based on 0.7 eV bandgap PbS colloidal quantum dots

Author(s): Yu Bi, Arnau Bertran, Shuchi Gupta, Iñigo Ramiro, Santanu Pradhan, Sotirios Christodoulou, Shanmukh-Naidu Majji, Mehmet Zafer Akgul, Gerasimos Konstantatos
Published in: Nanoscale, 11/3, 2019, Page(s) 838-843, ISSN 2040-3364
Publisher: Royal Society of Chemistry
DOI: 10.1039/c8nr08755e

Origin of the Below-Bandgap Turn-On Voltage in Light-Emitting Diodes and the High V OC in Solar Cells Comprising Colloidal Quantum Dots with an Engineered Density of States

Author(s): Santanu Pradhan, Mariona Dalmases, Gerasimos Konstantatos
Published in: The Journal of Physical Chemistry Letters, 10/11, 2019, Page(s) 3029-3034, ISSN 1948-7185
Publisher: American Chemical Society
DOI: 10.1021/acs.jpclett.9b01154

High-Open-Circuit-Voltage Solar Cells Based on Bright Mixed-Halide CsPbBrI 2 Perovskite Nanocrystals Synthesized under Ambient Air Conditions

Author(s): Sotirios Christodoulou, Francesco Di Stasio, Santanu Pradhan, Alexandros Stavrinadis, Gerasimos Konstantatos
Published in: The Journal of Physical Chemistry C, 122/14, 2018, Page(s) 7621-7626, ISSN 1932-7447
Publisher: American Chemical Society
DOI: 10.1021/acs.jpcc.8b01264

Engineering Vacancies in Bi 2 S 3 yielding Sub‐Bandgap Photoresponse and Highly Sensitive Short‐Wave Infrared Photodetectors

Author(s): Nengjie Huo, Alberto Figueroba, Yujue Yang, Sotirios Christodoulou, Alexandros Stavrinadis, César Magén, Gerasimos Konstantatos
Published in: Advanced Optical Materials, 7/11, 2019, Page(s) 1900258, ISSN 2195-1071
Publisher: ADVANCED OPTICAL MATERIALS
DOI: 10.1002/adom.201900258

Recent Progress and Future Prospects of 2D-Based Photodetectors

Author(s): Nengjie Huo, Gerasimos Konstantatos
Published in: Advanced Materials, 30/51, 2018, Page(s) 1801164, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.201801164

Mid- and Long-Wave Infrared Optoelectronics via Intraband Transitions in PbS Colloidal Quantum Dots

Author(s): Iñigo Ramiro, Onur Özdemir, Sotirios Christodoulou, Shuchi Gupta, Mariona Dalmases, Iacopo Torre, Gerasimos Konstantatos
Published in: Nano Letters, 20/2, 2019, Page(s) 1003-1008, ISSN 1530-6984
Publisher: American Chemical Society
DOI: 10.1021/acs.nanolett.9b04130

Ag 2 ZnSnS 4 Nanocrystals Expand the Availability of RoHS Compliant Colloidal Quantum Dots

Author(s): Avijit Saha, Alberto Figueroba, Gerasimos Konstantatos
Published in: Chemistry of Materials, 32/5, 2020, Page(s) 2148-2155, ISSN 0897-4756
Publisher: American Chemical Society
DOI: 10.1021/acs.chemmater.9b05370

High Sensitivity Hybrid PbS CQD-TMDC Photodetectors up to 2 μm

Author(s): Onur Özdemir, Iñigo Ramiro, Shuchi Gupta, Gerasimos Konstantatos
Published in: ACS Photonics, 6/10, 2019, Page(s) 2381-2386, ISSN 2330-4022
Publisher: American Chemical Society
DOI: 10.1021/acsphotonics.9b00870

Low-Cost RoHS Compliant Solution Processed Photovoltaics Enabled by Ambient Condition Synthesis of AgBiS 2 Nanocrystals

Author(s): M. Zafer Akgul, Alberto Figueroba, Santanu Pradhan, Yu Bi, Gerasimos Konstantatos
Published in: ACS Photonics, 7/3, 2020, Page(s) 588-595, ISSN 2330-4022
Publisher: American Chemical Society
DOI: 10.1021/acsphotonics.9b01757

Mixed AgBiS2 nanocrystals for photovoltaics and photodetectors

Author(s): Ignasi Burgués-Ceballos, Yongjie Wang, Gerasimos Konstantatos
Published in: Nanoscale, 2022, ISSN 2040-3364
Publisher: Royal Society of Chemistry
DOI: 10.1039/d2nr00589a

Solid‐State Thin‐Film Broadband Short‐Wave Infrared Light Emitters

Author(s): Santanu Pradhan, Mariona Dalmases, Gerasimos Konstantatos
Published in: Advanced Materials, 32/45, 2020, Page(s) 2003830, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.202003830

Colloidal AgBiS2 nanocrystals with reduced recombination yield 6.4% power conversion efficiency in solution-processed solar cells

Author(s): Ignasi Burgués-Ceballos, Yongjie Wang, M. Zafer Akgul, Gerasimos Konstantatos
Published in: Nano Energy, 75, 2020, Page(s) 104961, ISSN 2211-2855
Publisher: Elsevier BV
DOI: 10.1016/j.nanoen.2020.104961

AgBiSe 2 Colloidal Nanocrystals for Use in Solar Cells

Author(s): M. Zafer Akgul, Gerasimos Konstantatos
Published in: ACS Applied Nano Materials, 4/3, 2021, Page(s) 2887-2894, ISSN 2574-0970
Publisher: American Chemical Society
DOI: 10.1021/acsanm.1c00048

Cation disorder engineering yields AgBiS2 nanocrystals with enhanced optical absorption for efficient ultrathin solar cells

Author(s): Yongjie Wang, Seán R. Kavanagh, Ignasi Burgués-Ceballos, Aron Walsh, David O. Scanlon & Gerasimos Konstantatos
Published in: Nature Photonics, 16, 2022, Page(s) 235, ISSN 1749-4893
Publisher: Springer Nature
DOI: 10.1038/s41566-021-00950-4

Visible-Blind ZnMgO Colloidal Quantum Dot Downconverters Expand Silicon CMOS Sensors Spectral Coverage into Ultraviolet and Enable UV-Band Discrimination

Author(s): Avijit Saha,Gaurav Kumar,Santanu Pradhan,Gauttam Dash,Ranjani Viswanatha,Gerasimos Konstantatos
Published in: ADVANCED MATERIALS, 2022, Page(s) 2109498, ISSN 0935-9648
Publisher: United Nations Industrial Developement Organization
DOI: 10.1002/adma.202109498