4.8 Article

Remote Trap Passivation in Colloidal Quantum Dot Bulk Nano-heterojunctions and Its Effect in Solution-Processed Solar Cells

Journal

ADVANCED MATERIALS
Volume 26, Issue 27, Pages 4741-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201400297

Keywords

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Funding

  1. Fundacio Privada Cellex Barcelona
  2. European Community [308997]
  3. Strategic International Cooperative Program, Japan Science and Technology Agency (JST)
  4. MICINN
  5. Marie Curie CoFund Fellowship grant
  6. Marie-Curie IEF fellowship [PIEF-GA-2011-298596]

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More-efficient charge collection and suppressed trap recombination in colloidal quantum dot (CQD) solar cells is achieved by means of a bulk nano-heterojunction (BNH) structure, in which p-type and n-type materials are blended on the nanometer scale. The improved performance of the BNH devices, compared with that of bilayer devices, is displayed in higher photocurrents and higher open-circuit voltages (resulting from a trap passivation mechanism).

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