Enhancing sub-bandgap external quantum efficiency by photomultiplication for narrowband organic near-infrared photodetectors


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{
  "created": "2021-06-12T20:03:50.490599+00:00", 
  "metadata": {
    "publication_date": "Jun 21, 2021, 10:48:27", 
    "mcid": "2021.89", 
    "_files": [
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        "key": "README.ods", 
        "description": "Description of the files", 
        "size": 7118, 
        "checksum": "md5:1fe6f68e9cc28d1345d6a99de2f53ba7"
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        "key": "Data_availability.zip", 
        "description": "Dava availability for the aforementioned manuscript", 
        "size": 1293931, 
        "checksum": "md5:fabdb25ab93302f38dbf575ad9c0fa8b"
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    ], 
    "id": "887", 
    "title": "Enhancing sub-bandgap external quantum efficiency by photomultiplication for narrowband organic near-infrared photodetectors", 
    "is_last": true, 
    "description": "Detection of electromagnetic signals for applications such as health, product quality monitoring or astronomy requires highly responsive and wavelength selective devices. Photomultiplication-type organic detectors (PM-OPDs) have shown to achieve high quantum efficiencies mainly in the visible range. Much less research has been focused on realizing near-infrared narrowband PM-OPDs. Here, we demonstrate fully vacuum-processed narrow- and broadband PM\u2011OPDs. Our devices are based on enhanced hole injection leading to a maximum external quantum efficiency (EQE) of almost 2000% at -10 V for the broadband device. The photomultiplicative effect is also observed in the charge-transfer (CT) state absorption region. By making use of an optical cavity device architecture, we enhance CT absorption and demonstrate a wavelength tunable narrowband PM-OPD with EQEs superior to those of pin\u2011devices. The presented concept can further improve the performance of state-of-the-art OPDs based on the absorption of CT states, which were so far limited by the low EQE provided by these devices.", 
    "keywords": [
      "Photomultiplication", 
      "Organic Photodetectors", 
      "Narrowband", 
      "Experimental"
    ], 
    "references": [
      {
        "comment": "Paper where the data is described", 
        "citation": "J. Kublitski, A.Fischer, S.Xing, L. Baisinger, E. Bittrich, J.Benduhn, D.Spoltore, K.Vandewal, K.Leo, Nat. Commun., vol. 12, p. 4259 (2021)", 
        "doi": "https://doi.org/10.1038/s41467-021-24500-2", 
        "url": "https://www.nature.com/articles/s41467-021-24500-2", 
        "type": "Journal reference"
      }
    ], 
    "license": "Creative Commons Attribution 4.0 International", 
    "version": 1, 
    "contributors": [
      {
        "familyname": "Kublitski", 
        "affiliations": [
          "Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universit\u00e4t Dresden, N\u00f6thnitzer Str. 61, 01187 Dresden, Germany"
        ], 
        "givennames": "Jonas", 
        "email": "jonas.kublitski@tu-dresden.de"
      }, 
      {
        "familyname": "Fischer", 
        "affiliations": [
          "Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universit\u00e4t Dresden, N\u00f6thnitzer Str. 61, 01187 Dresden, Germany"
        ], 
        "givennames": "Axel"
      }, 
      {
        "familyname": "Xing", 
        "affiliations": [
          "Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universit\u00e4t Dresden, N\u00f6thnitzer Str. 61, 01187 Dresden, Germany"
        ], 
        "givennames": "Shen"
      }, 
      {
        "familyname": "Baisinger", 
        "affiliations": [
          "Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universit\u00e4t Dresden, N\u00f6thnitzer Str. 61, 01187 Dresden, Germany"
        ], 
        "givennames": "Lukasz"
      }, 
      {
        "familyname": "Bittrich", 
        "affiliations": [
          "Leibniz-Institut f\u00fcr Polymerforschung Dresden e.V., Hohe Str. 6, 01069 Dresden, Germany"
        ], 
        "givennames": "Eva"
      }, 
      {
        "familyname": "Benduhn", 
        "affiliations": [
          "Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universit\u00e4t Dresden, N\u00f6thnitzer Str. 61, 01187 Dresden, Germany"
        ], 
        "givennames": "Johannes"
      }, 
      {
        "familyname": "Spoltore", 
        "affiliations": [
          "Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universit\u00e4t Dresden, N\u00f6thnitzer Str. 61, 01187 Dresden, Germany"
        ], 
        "givennames": "Donato"
      }, 
      {
        "familyname": "Vandewal", 
        "affiliations": [
          "Instituut voor Materiaalonderzoek (IMO), Hasselt University, Wetenschapspark 1, BE-3590, Diepenbeek, Belgium"
        ], 
        "givennames": "Koen"
      }, 
      {
        "familyname": "Leo", 
        "affiliations": [
          "Dresden Integrated Center for Applied Physics and Photonic Materials (IAPP) and Institute for Applied Physics, Technische Universit\u00e4t Dresden, N\u00f6thnitzer Str. 61, 01187 Dresden, Germany"
        ], 
        "givennames": "Karl"
      }
    ], 
    "owner": 253, 
    "edited_by": 253, 
    "conceptrecid": "886", 
    "status": "published", 
    "license_addendum": null, 
    "_oai": {
      "id": "oai:materialscloud.org:887"
    }, 
    "doi": "10.24435/materialscloud:8w-q6"
  }, 
  "updated": "2021-12-07T11:50:46.596977+00:00", 
  "id": "887", 
  "revision": 7
}