4.6 Article

n- and p-Type HgTe Quantum Dot Films

Journal

JOURNAL OF PHYSICAL CHEMISTRY C
Volume 116, Issue 1, Pages 1344-1349

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/jp2109169

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Funding

  1. DOE [DE-FG02- 06ER46326]
  2. NSF MRSEC [DMA-0820054]
  3. Direct For Mathematical & Physical Scien
  4. Division Of Materials Research [820054] Funding Source: National Science Foundation

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Films of colloidal quantum dots of HgTe can be charged n- and p-type by electrochemistry. Infrared spectroscopy of the charged dots reveals interband bleach and intraband absorption. Similar mobilities, up to 0.1 cm(2)/(V s), are observed for both carriers, but p-type films show larger photocurrent while n-type films show larger magnetoresistance.

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