{ "meta": { "api_type": "NWO Projects API", "version": "1.0.2", "licence": { "name": "CC0 1.0 Universal", "url": "https://creativecommons.org/publicdomain/zero/1.0", "description": "To the extent possible under law, all copyright and related or neighbouring rights have been waived worldwide to the data made available through this API." }, "documentation": "https://doi.org/10.5281/zenodo.14918287", "release_date": "2025-08-20T00:00:00", "funder": "https://doi.org/10.13039/501100003246", "ror_id": "https://ror.org/04jsz6e67", "date": "2026-11-05T00:00:00", "count": 1, "per_page": 100, "pages": 1, "page": 1 }, "projects": [ { "project_id": "10070", "title": "Space-separated quantum cutting in Si quantum dots for efficient energy conversion in photovoltaics", "funding_scheme_id": 2135, "funding_scheme": "Open technologieprogramma OTP oud STW 2008 STW", "department": "Toegepaste en Technische Wetenschappen", "sub_department": "Technologiestichting STW", "start_date": "2008-06-01T00:00:00", "end_date": "2013-09-30T00:00:00", "reporting_year": 2008, "summary_nl": "When a high-energy light particle (UV photon) is absorbed by a silicon nanocrystal, part of its energy can be transferred to a neighbouring nanocrystal. In normal photovoltaic material this energy is lost in the form of heat. This project will study the transfer of charge by 'splitting up' an energy-rich photon that enters a nanocrystal. The aim is to determine whether this method could be used to increase the yield of solar cells and other photovoltaic elements.", "summary_en": "When a high-energy light particle (UV photon) is absorbed by a silicon nanocrystal, part of its energy can be transferred to a neighbouring nanocrystal. In normal photovoltaic material this energy is lost in the form of heat. This project will study the transfer of charge by 'splitting up' an energy-rich photon that enters a nanocrystal. The aim is to determine whether this method could be used to increase the yield of solar cells and other photovoltaic elements.", "project_members": [ { "role": "Researcher", "member_id": 229644, "last_name": "Saeed", "degree_pre_nominal": "ir.", "degree_post_nominal": "MSc", "initials": "S.", "first_name": "Saba", "organisation": "Universiteit van Amsterdam||Faculteit der Natuurwetenschappen, Wiskunde en Informatica (Faculty of Science)||Institute of Physics (IoP)", "organisation_id": 78098, "ror": "https://ror.org/04dkp9463", "active": false }, { "role": "Researcher", "member_id": 205074, "last_name": "Boer", "degree_pre_nominal": "dr.", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "organisation": "Universiteit van Amsterdam||Faculteit der Natuurwetenschappen, Wiskunde en Informatica (Faculty of Science)||Institute of Physics (IoP)", "organisation_id": 78098, "ror": "https://ror.org/04dkp9463", "active": false }, { "role": "Researcher", "member_id": 229641, "last_name": "Trinh", "degree_pre_nominal": "dr.", "initials": "M.T.", "organisation": "Universiteit van Amsterdam||Faculteit der Natuurwetenschappen, Wiskunde en Informatica (Faculty of Science)||Institute of Physics (IoP)", "organisation_id": 78098, "ror": "https://ror.org/04dkp9463", "active": false }, { "role": "Researcher", "member_id": 209980, "last_name": "Loop", "degree_pre_nominal": "drs.", "initials": "T.H.", "first_name": "Tibert", "prefix": "van der", "organisation": "Universiteit van Amsterdam||Faculteit der Natuurwetenschappen, Wiskunde en Informatica (Faculty of Science)||Institute of Physics (IoP)", "organisation_id": 78098, "ror": "https://ror.org/04dkp9463", "active": false }, { "role": "Project leader", "member_id": 112757, "last_name": "Gregorkiewicz", "degree_pre_nominal": "prof. dr.", "initials": "T.", "first_name": "Tom", "organisation": "Universiteit van Amsterdam||Faculteit der Natuurwetenschappen, Wiskunde en Informatica (Faculty of Science)||Institute of Physics (IoP)", "organisation_id": 78098, "ror": "https://ror.org/04dkp9463", "active": true }, { "role": "Main Applicant", "member_id": 112757, "last_name": "Gregorkiewicz", "degree_pre_nominal": "prof. dr.", "initials": "T.", "first_name": "Tom", "organisation": "Universiteit van Amsterdam||Faculteit der Natuurwetenschappen, Wiskunde en Informatica (Faculty of Science)||Van der Waals - Zeeman Instituut", "organisation_id": 75247, "ror": "https://ror.org/04dkp9463", "active": true } ], "products": [ { "title": "Wavenumber domain regularisation for near-field acoustic holography by means of modified filter functions and a cut-off and slope iteration\n", "year": 2008, "edition": "94", "start": 339, "end": 348, "type": "Wetenschappelijk artikel", "journal_title": "Acta Acustica", "authors": [ { "last_name": "Roozen", "initials": "N.B.", "first_name": "Bert", "role": "Auteur", "index_number": 3 }, { "last_name": "Nijmeijer", "initials": "H.", "first_name": "Henk", "role": "Auteur", "index_number": 4 }, { "last_name": "Lopez Arteaga", "initials": "I.", "first_name": "Ines", "role": "Auteur", "index_number": 2 }, { "last_name": "Scholte", "initials": "R.", "first_name": "Rick", "role": "Auteur", "index_number": 1 } ] }, { "title": "Space-separated quantum cutting in differently prepared solid-state dispersions of Si nanocrystals and Er3+ ions in SiO2\n", "year": 2009, "edition": "159", "start": 87, "end": 89, "type": "Wetenschappelijk artikel", "journal_title": "Mater. Sci. Eng. B", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 1 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 2 } ] }, { "title": "Power-dependent spectral shift of photoluminescence from ensembles of silicon nanocrystals\n", "year": 2012, "edition": "7", "start": 789, "end": 6, "type": "Wetenschappelijk artikel", "journal_title": "Nanoscale Research", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 1 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 2 } ] }, { "title": "Saturation of luminescence from Si nanocrystals embedded in SiO2", "year": 2010, "edition": "20", "start": 183, "end": 187, "type": "Wetenschappelijk artikel", "journal_title": "Physica Status Solidi A", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 1 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Izeddin", "initials": "I.", "role": "Auteur", "index_number": 2 } ] }, { "title": "Investigation of saturation and excitation behavior of 1.5 ?m emission from Er3+ ions in SiO2 sensitized with Si nanocrystals\n", "year": 2012, "edition": "9", "start": 2312, "end": 2317, "type": "Wetenschappelijk artikel", "journal_title": "Physica Status Solidi C", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 1 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Saeed", "initials": "S.", "role": "Auteur", "index_number": 2 }, { "last_name": "Roldan-Gutierrez", "initials": "M.A.", "role": "Auteur", "index_number": 4 }, { "last_name": "Molina", "initials": "S.J", "role": "Auteur", "index_number": 5 } ] }, { "title": "Step-like enhancement of luminescence quantum yield of Si nanocrystals\n", "year": 2011, "edition": "6", "start": 710, "end": 713, "type": "Wetenschappelijk artikel", "journal_title": "Nature Nanotechnology", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 1 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 5 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 4 }, { "last_name": "Valenta", "initials": "J.", "role": "Auteur", "index_number": 2 }, { "last_name": "Dohnalova", "initials": "K.", "role": "Auteur", "index_number": 3 } ] }, { "title": "Space separated multiexciton generation in Si nanocrystals\n", "type": "Overige Output", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Maker", "index_number": 1 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Maker", "index_number": 3 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Maker", "index_number": 2 } ] }, { "title": "Increased carrier generation rate in Si nanocrystals in SiO2 investigated by induced absorption\n", "year": 2011, "edition": "99", "start": 53126, "end": 3, "type": "Wetenschappelijk artikel", "journal_title": "Applied Physics Letters", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 2 }, { "last_name": "Schins", "initials": "J.M.", "first_name": "Juleon", "role": "Auteur", "index_number": 4 }, { "last_name": "Siebbeles", "initials": "L.D.A.", "first_name": "Laurens", "role": "Auteur", "index_number": 5 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 6 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 1 }, { "last_name": "Trinh", "initials": "M.T.", "role": "Auteur", "index_number": 3 } ] }, { "title": "Self-trapped exciton state in Si nanocrystals revealed by induced absorption\n", "year": 2012, "edition": "85", "start": 141409, "end": 5, "type": "Wetenschappelijk artikel", "journal_title": "Phys. Rev. B ", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 2 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 1 }, { "last_name": "Buma", "initials": "W.J.", "first_name": "Wybren Jan", "role": "Auteur", "index_number": 5 }, { "last_name": "Zhang", "initials": "H.", "role": "Auteur", "index_number": 4 } ] }, { "title": "Photoluminescence excitation spectroscopy of Si nanocrystals in SiO2\n", "year": 2012, "edition": "45", "type": "Wetenschappelijk artikel", "journal_title": "ECS Transactions", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 2 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 1 }, { "last_name": "Roldan Gutierrez", "initials": "M.A.", "role": "Auteur", "index_number": 4 }, { "last_name": "Molina", "initials": "S.I.", "role": "Auteur", "index_number": 5 } ] }, { "title": "Photoluminescence excitation spectroscopy of Si nanocrystals in SiO2\n", "year": 2012, "edition": "9", "start": 2312, "end": 2317, "type": "Wetenschappelijk artikel", "journal_title": "Physica Status Solidi C", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 2 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 1 }, { "last_name": "Roldan-Gutierrez", "initials": "M.A.", "role": "Auteur", "index_number": 4 }, { "last_name": "Molina", "initials": "S.J.", "role": "Auteur", "index_number": 5 } ] }, { "title": "Stralende toekomst voor silicium nanokristallen!\n", "year": 2008, "start": 372, "end": 376, "type": "Wetenschappelijk artikel", "journal_title": "Nederlands Tijschrift voor Natuurkunde", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 2 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 1 } ] }, { "title": "Dynamics and microscopic orogin of fast 1.5 ?m emission in Er-doped SiO2 sensitized with Si nanocrystals\n", "year": 2011, "edition": "83", "start": 155323, "end": 5, "type": "Wetenschappelijk artikel", "journal_title": "Physical Review B", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 2 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Saeed", "initials": "S.", "role": "Auteur", "index_number": 1 } ] }, { "title": "Si nanocrystals in SiO2 for efficient energy management\n", "type": "Overige Output", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Maker", "index_number": 2 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Maker", "index_number": 1 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Maker", "index_number": 3 } ] }, { "title": "Optical properties of Si/Si:Er multi-nanolayer structures grown by SMBE method\n", "year": 2009, "edition": "23", "start": 5131, "end": 5136, "type": "Wetenschappelijk artikel", "journal_title": "Physica B", "authors": [ { "last_name": "Timmerman", "initials": "D.", "first_name": "Dolf", "role": "Auteur", "index_number": 5 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 8 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 3 }, { "last_name": "Buma", "initials": "W.J.", "first_name": "Wybren Jan", "role": "Auteur", "index_number": 7 }, { "last_name": "Prokofiev", "initials": "A.A.", "role": "Auteur", "index_number": 1 }, { "last_name": "Moskalenko", "initials": "A.S.", "role": "Auteur", "index_number": 2 }, { "last_name": "Yassievich", "initials": "I.N.", "role": "Auteur", "index_number": 3 }, { "last_name": "Zhang", "initials": "W.", "role": "Auteur", "index_number": 6 } ] }, { "title": "Ultrafast and multicolor spectroscopy of carrier relaxation and recombination in Si nanocrystals\n", "type": "Wetenschappelijk artikel", "journal_title": "Materials Science and Engineering B", "authors": [ { "last_name": "Zhang", "initials": "H.", "first_name": "Hong", "role": "Auteur", "index_number": 2 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 1 } ] }, { "title": "On microscopic origin of the fast blue-green luminescence from chemically synthesized non-oxidized silicon quantum dots\n", "year": 2012, "edition": "8", "start": 3185, "end": 3192, "type": "Wetenschappelijk artikel", "journal_title": "Small", "authors": [ { "last_name": "Paulusse", "initials": "J.M.J.", "first_name": "Jos", "role": "Auteur", "index_number": 7 }, { "last_name": "Dohnalova", "initials": "K.", "first_name": "Katerina", "role": "Auteur", "index_number": 1 }, { "last_name": "Fucikova", "initials": "A.", "role": "Auteur", "index_number": 2 }, { "last_name": "Humpolickova", "initials": "J.", "role": "Auteur", "index_number": 3 }, { "last_name": "Hof", "initials": "M.", "role": "Auteur", "index_number": 4 }, { "last_name": "Valenta", "initials": "J.", "role": "Auteur", "index_number": 5 }, { "last_name": "Umesh", "initials": "C.P.", "role": "Auteur", "index_number": 6 }, { "last_name": "Zuilhof", "initials": "H.", "role": "Auteur", "index_number": 8 } ] }, { "title": "Direct generation of multiple excitons in adjacent silicon nanocrystals revealed by induced absorption\n", "year": 2012, "edition": "6", "start": 141409, "end": 5, "type": "Wetenschappelijk artikel", "journal_title": "Nature Photonics", "authors": [ { "last_name": "Schins", "initials": "J.M.", "first_name": "Juleon", "role": "Auteur", "index_number": 5 }, { "last_name": "Siebbeles", "initials": "L.D.A.", "first_name": "Laurens", "role": "Auteur", "index_number": 6 }, { "last_name": "Limpens", "initials": "R.", "first_name": "Rens", "role": "Auteur", "index_number": 2 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 4 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 3 }, { "last_name": "Trinh", "initials": "M.T.", "role": "Auteur", "index_number": 1 } ] }, { "title": "Photon cutting for excitation of Er3+ ions in SiO2 sensitized by Si quantum dots\n", "year": 2011, "edition": "84", "start": 241308, "end": 5, "type": "Wetenschappelijk artikel", "journal_title": "Physical Review B", "authors": [ { "last_name": "Dohnalova", "initials": "K.", "first_name": "Katerina", "role": "Auteur", "index_number": 3 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 8 }, { "last_name": "Ha", "initials": "N.N.", "role": "Auteur", "index_number": 1 }, { "last_name": "Cueff", "initials": "S.", "role": "Auteur", "index_number": 2 }, { "last_name": "Trinh", "initials": "M.T.", "role": "Auteur", "index_number": 4 }, { "last_name": "Labbe", "initials": "C.", "role": "Auteur", "index_number": 5 }, { "last_name": "Rizk", "initials": "R.", "role": "Auteur", "index_number": 6 }, { "last_name": "Yassievich", "initials": "I.N.", "role": "Auteur", "index_number": 7 } ] }, { "title": "On relation between the 1.5 ?m Er-related emission and the 9 ?m vibrational modes of oxygen in Si\n", "year": 2009, "edition": "41", "start": 1051, "end": 1054, "type": "Wetenschappelijk artikel", "journal_title": "Physica E", "authors": [ { "last_name": "Minissale", "initials": "S.", "first_name": "Salvatore", "role": "Auteur", "index_number": 1 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Vinh", "initials": "N.Q.", "role": "Auteur", "index_number": 2 } ] }, { "title": "THz transitions within the ground state of Er3+ ions in Si", "year": 2009, "edition": "79", "start": 115324, "end": 5, "type": "Wetenschappelijk artikel", "journal_title": "Physical Review B", "authors": [ { "last_name": "Minissale", "initials": "S.", "first_name": "Salvatore", "role": "Auteur", "index_number": 1 }, { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 4 }, { "last_name": "Vinh", "initials": "N.Q.", "role": "Auteur", "index_number": 2 }, { "last_name": "Bresler", "initials": "M.S.", "role": "Auteur", "index_number": 3 } ] }, { "title": "Photonic properties of Er-doped crystalline silicon\n", "year": 2009, "start": 1269, "end": 1283, "type": "Wetenschappelijk artikel", "journal_title": "Proceedings of the IEEE", "authors": [ { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "Vinh", "initials": "N.Q.", "role": "Auteur", "index_number": 1 }, { "last_name": "Ha", "initials": "N.N.", "role": "Auteur", "index_number": 2 } ] }, { "title": "Optical spectroscopy of carrier relaxation processes in Si nanocrystals\n", "year": 2009, "edition": "159", "start": 190, "end": 193, "type": "Wetenschappelijk artikel", "journal_title": "Mater. Sci. Eng. B", "authors": [ { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 3 }, { "last_name": "de Boer", "initials": "W.", "role": "Auteur", "index_number": 1 }, { "last_name": "Zhang", "initials": "H.", "role": "Auteur", "index_number": 2 } ] }, { "title": "Red spectral shift and enhanced quantum efficiency in phonon-free photoluminescence from silicon nanocrystals", "year": 2010, "edition": "5", "start": 878, "end": 884, "type": "Wetenschappelijk artikel", "journal_title": "Nature Nanotechnology", "authors": [ { "last_name": "Gregorkiewicz", "initials": "T.", "first_name": "Tom", "role": "Auteur", "index_number": 6 }, { "last_name": "Boer", "initials": "W.D.A.M.", "first_name": "Wieteke", "prefix": "de", "role": "Auteur", "index_number": 1 }, { "last_name": "Timmerman", "initials": "D.", "role": "Auteur", "index_number": 2 }, { "last_name": "Yassievich", "initials": "I.N.", "role": "Auteur", "index_number": 3 }, { "last_name": "Zhang", "initials": "H.", "role": "Auteur", "index_number": 4 }, { "last_name": "Buma", "initials": "W.J.", "role": "Auteur", "index_number": 5 } ] } ] } ] }