{
  "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": "040.11.311",
      "title": "High Field Dynamic Nuclear Polarization Studies in  Mn-Doped Semiconductor Quantum Dots",
      "funding_scheme_id": 1032,
      "funding_scheme": "Bezoekersbeurs Bezoekersbeurs t/m 2016 2011 BOO",
      "department": "",
      "sub_department": "NWO-breed",
      "start_date": "2012-03-16T00:00:00",
      "end_date": "2013-02-18T00:00:00",
      "reporting_year": 2011,
      "summary_nl": "Nuclear magnetic resonance (NMR) is a powerful form of spectroscopy involving absorption and re-emission of radiowave electromagnetic energy of magnetic nuclei in a magnetic field. It has applications in all areas of science, and it is also used routinely in advanced medical imaging (e.g. MRI). Despite its versatility, NMR is also one of the least sensitive forms of spectroscopy due to the unfavorable Boltzmann factor at ambient temperature and (2) the low efficiency for radiowave detection. The first of these can be overcome by hyperpolarization (HP) methods such as dynamic nuclear polarization (DNP), which can increase the NMR signal intensity by amplifying the fractional population differences between quantized nuclear spin levels. DNP is generally applicable to any material containing a sufficiently high density of unpaired electron spins. Although DNP is a relatively old phenomenon, several key breakthroughs in recent years have led to a renaissance in the development of the DNP methodology. The proposed sabbatical visit will utilize the DNP instrumentation developed in Nijmegen to explore DNP mechanisms and to optimize the NMR signal enhancement in Mn-doped semiconductor quantum dots (Q-dots). Potential applications are described below.\nA problem for conventional solid-state NMR characterization of Q-dots is that their preparation by colloidal wet-chemistry synthesis typically yields only microgram to mg-scale quantities of material. This is not enough material to afford detection by conventional solid-state NMR. Although it is certainly possible to scale-up the syntheses, such an approach would be cost-prohibitive for systematic variation of the size, doping, and composition.  The highly efficient low-volume double resonator topology developed by the Nijmegen group, which will require less than 1mg of sample, is ideally suited to this task. \n",
      "summary_en": "Nuclear magnetic resonance (NMR) is a powerful form of spectroscopy involving absorption and re-emission of radiowave electromagnetic energy of magnetic nuclei in a magnetic field. It has applications in all areas of science, and it is also used routinely in advanced medical imaging (e.g. MRI). Despite its versatility, NMR is also one of the least sensitive forms of spectroscopy due to the unfavorable Boltzmann factor at ambient temperature and (2) the low efficiency for radiowave detection. The first of these can be overcome by hyperpolarization (HP) methods such as dynamic nuclear polarization (DNP), which can increase the NMR signal intensity by amplifying the fractional population differences between quantized nuclear spin levels. DNP is generally applicable to any material containing a sufficiently high density of unpaired electron spins. Although DNP is a relatively old phenomenon, several key breakthroughs in recent years have led to a renaissance in the development of the DNP methodology. The proposed sabbatical visit will utilize the DNP instrumentation developed in Nijmegen to explore DNP mechanisms and to optimize the NMR signal enhancement in Mn-doped semiconductor quantum dots (Q-dots). Potential applications are described below.\nA problem for conventional solid-state NMR characterization of Q-dots is that their preparation by colloidal wet-chemistry synthesis typically yields only microgram to mg-scale quantities of material. This is not enough material to afford detection by conventional solid-state NMR. Although it is certainly possible to scale-up the syntheses, such an approach would be cost-prohibitive for systematic variation of the size, doping, and composition.  The highly efficient low-volume double resonator topology developed by the Nijmegen group, which will require less than 1mg of sample, is ideally suited to this task. \n",
      "project_members": [
        {
          "role": "Project leader",
          "member_id": 101641,
          "last_name": "Bentum",
          "degree_pre_nominal": "dr.",
          "initials": "P.J.M.",
          "first_name": "Jan",
          "prefix": "van",
          "organisation": "Radboud Universiteit Nijmegen||Faculteit der Natuurwetenschappen, Wiskunde en Informatica||Subfaculteit Scheikunde||Fysische Chemie/Vaste Stof NMR",
          "organisation_id": 81481,
          "ror": "https://ror.org/016xsfp80",
          "active": false
        },
        {
          "role": "Main Applicant",
          "member_id": 101641,
          "last_name": "Bentum",
          "degree_pre_nominal": "dr.",
          "initials": "P.J.M.",
          "first_name": "Jan",
          "prefix": "van",
          "organisation": "Radboud Universiteit Nijmegen||Faculteit der Natuurwetenschappen, Wiskunde en Informatica||Subfaculteit Scheikunde||Fysische Chemie/Vaste Stof NMR",
          "organisation_id": 81481,
          "ror": "https://ror.org/016xsfp80",
          "active": true
        }
      ]
    }
  ]
}