DOI: 10.1063/1.1523148. Transport properties of annealed CdSe colloidal nanocrystal solids

Transport properties of annealed CdSe colloidal nanocrystal solids

10.1063/1.1523148

Crossref journal-article

AIP Publishing

Journal of Applied Physics (317)

Abstract

Transport properties of artificial solids composed of colloidal CdSe nanocrystals (NCs) are studied from 6 to 250 K, before and after annealing. After the solids are annealed, three changes are observed. First, transmission electron micrographs show that the separation between NCs decreases with annealing. Second, the optical absorption spectrum changes: the excitonic peaks of the NC solids shift to lower energies and broaden with annealing. These redshifts can result from the change of the dielectric environment around the NCs. Last, annealing results in greatly enhanced dark current and photocurrent. This increased current can be attributed to the enhancement of interdot tunneling caused by the decreased separation between NCs and by chemical changes in their organic cap. In addition, the dark current is an exponential function of the applied electric field and it is only weakly temperature dependent. Our measurements also suggest that Coulomb interactions between charges on neighboring NCs play an important role in the tunneling current.

Bibliography

DrndiÄ, M., Jarosz, M. V., Morgan, N. Y., Kastner, M. A., & Bawendi, M. G. (2002). Transport properties of annealed CdSe colloidal nanocrystal solids. Journal of Applied Physics, 92(12), 7498â7503.

Authors 5

M. Drndić (first)
M. V. Jarosz (additional)
N. Y. Morgan (additional)
M. A. Kastner (additional)
M. G. Bawendi (additional)

References 21 Referenced 171

{'key': '2024020713185047500_r1', 'first-page': '24', 'volume': '46', 'year': '1993', 'journal-title': 'Phys. Today'} / Phys. Today (1993)
10.1146/annurev.matsci.30.1.545 / Annu. Rev. Mater. Sci. (2000)
10.1126/science.277.5334.1978 / Science (1997)
10.1103/PhysRevLett.71.3198 / Phys. Rev. Lett. (1993)
L. S. Levitov and B. Kozinsky, cond-mat/9912484;
D. S. Novikov , B. Kozinsky, and L. S. Levitov, cond-mat/0111345.
10.1063/1.372021 / J. Appl. Phys. (2000)
10.1103/PhysRevB.66.075339 / Phys. Rev. B (2002)
10.1103/PhysRevB.62.2669 / Phys. Rev. B (2000)
10.1103/PhysRevB.38.9093 / Phys. Rev. B (1988)
10.1126/science.290.5494.1131 / Science (2000)
10.1103/PhysRevB.63.165315 / Phys. Rev. B (2001)
{'key': '2024020713185047500_r11a', 'first-page': '9881', 'volume': '9', 'year': '1997', 'journal-title': 'J. Phys.: Condens. Matter'} / J. Phys.: Condens. Matter (1997)
{'key': '2024020713185047500_r12'}
10.1103/PhysRevB.60.1504 / Phys. Rev. B (1999)
10.1063/1.1379990 / Appl. Phys. Lett. (2001)
{'key': '2024020713185047500_r15'}
{'key': '2024020713185047500_r16'}
10.1146/annurev.physchem.49.1.371 / Annu. Rev. Phys. Chem. (1998)
{'key': '2024020713185047500_r17a', 'first-page': '385', 'volume': '204', 'year': '1904', 'journal-title': 'Philos. Trans. R. Soc. London, Ser.'} / Philos. Trans. R. Soc. London, Ser. (1904)
10.1063/1.123941 / Appl. Phys. Lett. (1999)

Dates

Type	When
Created	22 years, 9 months ago (Dec. 2, 2002, 1:48 p.m.)
Deposited	1 year, 6 months ago (Feb. 7, 2024, 2:58 p.m.)
Indexed	18 hours, 3 minutes ago (Sept. 4, 2025, 9:44 a.m.)
Issued	22 years, 8 months ago (Dec. 15, 2002)
Published	22 years, 8 months ago (Dec. 15, 2002)
Published Print	22 years, 8 months ago (Dec. 15, 2002)

Funders 0

None

BibTeX

@article{Drndi__2002, title={Transport properties of annealed CdSe colloidal nanocrystal solids}, volume={92}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.1523148}, DOI={10.1063/1.1523148}, number={12}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Drndić, M. and Jarosz, M. V. and Morgan, N. Y. and Kastner, M. A. and Bawendi, M. G.}, year={2002}, month=dec, pages={7498–7503} }

JSON

{
  "indexed": {
    "date-parts": [
      [
        2025,
        9,
        4
      ]
    ],
    "date-time": "2025-09-04T13:44:56Z",
    "timestamp": 1756993496363
  },
  "reference-count": 21,
  "publisher": "AIP Publishing",
  "issue": "12",
  "content-domain": {
    "domain": [
      "pubs.aip.org"
    ],
    "crossmark-restriction": true
  },
  "published-print": {
    "date-parts": [
      [
        2002,
        12,
        15
      ]
    ]
  },
  "abstract": "<jats:p>Transport properties of artificial solids composed of colloidal CdSe nanocrystals (NCs) are studied from 6 to 250 K, before and after annealing. After the solids are annealed, three changes are observed. First, transmission electron micrographs show that the separation between NCs decreases with annealing. Second, the optical absorption spectrum changes: the excitonic peaks of the NC solids shift to lower energies and broaden with annealing. These redshifts can result from the change of the dielectric environment around the NCs. Last, annealing results in greatly enhanced dark current and photocurrent. This increased current can be attributed to the enhancement of interdot tunneling caused by the decreased separation between NCs and by chemical changes in their organic cap. In addition, the dark current is an exponential function of the applied electric field and it is only weakly temperature dependent. Our measurements also suggest that Coulomb interactions between charges on neighboring NCs play an important role in the tunneling current.</jats:p>",
  "DOI": "10.1063/1.1523148",
  "type": "journal-article",
  "created": {
    "date-parts": [
      [
        2002,
        12,
        2
      ]
    ],
    "date-time": "2002-12-02T18:48:21Z",
    "timestamp": 1038854901000
  },
  "page": "7498-7503",
  "update-policy": "http://dx.doi.org/10.1063/aip-crossmark-policy-page",
  "source": "Crossref",
  "is-referenced-by-count": 171,
  "title": "Transport properties of annealed CdSe colloidal nanocrystal solids",
  "prefix": "10.1063",
  "volume": "92",
  "author": [
    {
      "given": "M.",
      "family": "Drndi\u0107",
      "sequence": "first",
      "affiliation": [
        {
          "name": "Department of Physics, Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts\u200902139"
        }
      ]
    },
    {
      "given": "M. V.",
      "family": "Jarosz",
      "sequence": "additional",
      "affiliation": [
        {
          "name": "Department of Chemistry, Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts\u200902139"
        }
      ]
    },
    {
      "given": "N. Y.",
      "family": "Morgan",
      "sequence": "additional",
      "affiliation": [
        {
          "name": "Department of Physics, Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts\u200902139"
        }
      ]
    },
    {
      "given": "M. A.",
      "family": "Kastner",
      "sequence": "additional",
      "affiliation": [
        {
          "name": "Department of Physics, Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts\u200902139"
        }
      ]
    },
    {
      "given": "M. G.",
      "family": "Bawendi",
      "sequence": "additional",
      "affiliation": [
        {
          "name": "Department of Chemistry, Center for Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts\u200902139"
        }
      ]
    }
  ],
  "member": "317",
  "reference": [
    {
      "key": "2024020713185047500_r1",
      "first-page": "24",
      "volume": "46",
      "year": "1993",
      "journal-title": "Phys. Today"
    },
    {
      "key": "2024020713185047500_r2",
      "doi-asserted-by": "crossref",
      "first-page": "545",
      "DOI": "10.1146/annurev.matsci.30.1.545",
      "volume": "30",
      "year": "2000",
      "journal-title": "Annu. Rev. Mater. Sci."
    },
    {
      "key": "2024020713185047500_r3",
      "doi-asserted-by": "crossref",
      "first-page": "1978",
      "DOI": "10.1126/science.277.5334.1978",
      "volume": "277",
      "year": "1997",
      "journal-title": "Science"
    },
    {
      "key": "2024020713185047500_r4",
      "doi-asserted-by": "crossref",
      "first-page": "3198",
      "DOI": "10.1103/PhysRevLett.71.3198",
      "volume": "71",
      "year": "1993",
      "journal-title": "Phys. Rev. Lett."
    },
    {
      "key": "2024020713185047500_r5",
      "unstructured": "L. S. \n            Levitov \n          and B. Kozinsky, cond-mat/9912484;"
    },
    {
      "key": "2024020713185047500_r5a",
      "unstructured": "D. S. \n            Novikov\n          , B. Kozinsky, and L. S. Levitov, cond-mat/0111345."
    },
    {
      "key": "2024020713185047500_r6",
      "doi-asserted-by": "crossref",
      "first-page": "1361",
      "DOI": "10.1063/1.372021",
      "volume": "87",
      "year": "2000",
      "journal-title": "J. Appl. Phys."
    },
    {
      "key": "2024020713185047500_r7",
      "doi-asserted-by": "crossref",
      "first-page": "075339",
      "DOI": "10.1103/PhysRevB.66.075339",
      "volume": "66",
      "year": "2002",
      "journal-title": "Phys. Rev. B"
    },
    {
      "key": "2024020713185047500_r8",
      "doi-asserted-by": "crossref",
      "first-page": "2669",
      "DOI": "10.1103/PhysRevB.62.2669",
      "volume": "62",
      "year": "2000",
      "journal-title": "Phys. Rev. B"
    },
    {
      "key": "2024020713185047500_r9",
      "doi-asserted-by": "crossref",
      "first-page": "9093",
      "DOI": "10.1103/PhysRevB.38.9093",
      "volume": "38",
      "year": "1988",
      "journal-title": "Phys. Rev. B"
    },
    {
      "key": "2024020713185047500_r10",
      "doi-asserted-by": "crossref",
      "first-page": "1131",
      "DOI": "10.1126/science.290.5494.1131",
      "volume": "290",
      "year": "2000",
      "journal-title": "Science"
    },
    {
      "key": "2024020713185047500_r11",
      "doi-asserted-by": "crossref",
      "first-page": "165315",
      "DOI": "10.1103/PhysRevB.63.165315",
      "volume": "63",
      "year": "2001",
      "journal-title": "Phys. Rev. B"
    },
    {
      "key": "2024020713185047500_r11a",
      "first-page": "9881",
      "volume": "9",
      "year": "1997",
      "journal-title": "J. Phys.: Condens. Matter"
    },
    {
      "key": "2024020713185047500_r12"
    },
    {
      "key": "2024020713185047500_r13",
      "doi-asserted-by": "crossref",
      "first-page": "1504",
      "DOI": "10.1103/PhysRevB.60.1504",
      "volume": "60",
      "year": "1999",
      "journal-title": "Phys. Rev. B"
    },
    {
      "key": "2024020713185047500_r14",
      "doi-asserted-by": "crossref",
      "first-page": "4022",
      "DOI": "10.1063/1.1379990",
      "volume": "78",
      "year": "2001",
      "journal-title": "Appl. Phys. Lett."
    },
    {
      "key": "2024020713185047500_r15"
    },
    {
      "key": "2024020713185047500_r16"
    },
    {
      "key": "2024020713185047500_r17",
      "doi-asserted-by": "crossref",
      "first-page": "371",
      "DOI": "10.1146/annurev.physchem.49.1.371",
      "volume": "49",
      "year": "1998",
      "journal-title": "Annu. Rev. Phys. Chem."
    },
    {
      "key": "2024020713185047500_r17a",
      "first-page": "385",
      "volume": "204",
      "year": "1904",
      "journal-title": "Philos. Trans. R. Soc. London, Ser."
    },
    {
      "key": "2024020713185047500_r18",
      "doi-asserted-by": "crossref",
      "first-page": "2699",
      "DOI": "10.1063/1.123941",
      "volume": "74",
      "year": "1999",
      "journal-title": "Appl. Phys. Lett."
    }
  ],
  "container-title": "Journal of Applied Physics",
  "original-title": [],
  "language": "en",
  "link": [
    {
      "URL": "https://pubs.aip.org/aip/jap/article-pdf/92/12/7498/19318563/7498_1_online.pdf",
      "content-type": "application/pdf",
      "content-version": "vor",
      "intended-application": "syndication"
    },
    {
      "URL": "https://pubs.aip.org/aip/jap/article-pdf/92/12/7498/19318563/7498_1_online.pdf",
      "content-type": "unspecified",
      "content-version": "vor",
      "intended-application": "similarity-checking"
    }
  ],
  "deposited": {
    "date-parts": [
      [
        2024,
        2,
        7
      ]
    ],
    "date-time": "2024-02-07T19:58:42Z",
    "timestamp": 1707335922000
  },
  "score": 1,
  "resource": {
    "primary": {
      "URL": "https://pubs.aip.org/jap/article/92/12/7498/761000/Transport-properties-of-annealed-CdSe-colloidal"
    }
  },
  "subtitle": [],
  "short-title": [],
  "issued": {
    "date-parts": [
      [
        2002,
        12,
        15
      ]
    ]
  },
  "references-count": 21,
  "journal-issue": {
    "issue": "12",
    "published-print": {
      "date-parts": [
        [
          2002,
          12,
          15
        ]
      ]
    }
  },
  "URL": "http://dx.doi.org/10.1063/1.1523148",
  "relation": {},
  "ISSN": [
    "0021-8979",
    "1089-7550"
  ],
  "subject": [],
  "published-other": {
    "date-parts": [
      [
        2002,
        12,
        15
      ]
    ]
  },
  "published": {
    "date-parts": [
      [
        2002,
        12,
        15
      ]
    ]
  }
}