Hybrid solar cells from P3HT and silicon nanocrystals

Uwe R. Kortshagen, Chin Yl Liu, Zachary Holman

Research output: Contribution to journalArticle

326 Citations (Scopus)

Abstract

We are reporting new hybrid solar cells based on blends of silicon nanocrystals (Si NCs) and poly-3(hexylthiophene) (P3HT) polymer in which a percolating network of the nanocrystals acts as the electron-conducting phase. The properties of composite Si NCs/P3HT devices made by spin-coating Si NCs and P3HT from a common solvent were studied as a function of Si NC size and Si NC/P3HT ratio. The open-circuit voltage and short-circuit current are observed to depend on the Si NC size due to changes in the bandgap and surface-area-to-volume ratio. Under simulated one-sun A.M. 1.5 direct illumination (100 mW/cm 2), devices made with 35 wt % Si NCs 3-5 nm in size showed 1.15% power conversion efficiency.

Original languageEnglish (US)
Pages (from-to)449-452
Number of pages4
JournalNano Letters
Volume9
Issue number1
DOIs
StatePublished - Jan 2009
Externally publishedYes

Fingerprint

Silicon
Nanocrystals
Solar cells
nanocrystals
solar cells
silicon
Spin coating
Open circuit voltage
short circuit currents
open circuit voltage
Short circuit currents
Sun
Conversion efficiency
coating
Polymers
sun
Energy gap
Lighting
illumination
poly(3-hexylthiophene)

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanical Engineering

Cite this

Hybrid solar cells from P3HT and silicon nanocrystals. / Kortshagen, Uwe R.; Liu, Chin Yl; Holman, Zachary.

In: Nano Letters, Vol. 9, No. 1, 01.2009, p. 449-452.

Research output: Contribution to journalArticle

Kortshagen, Uwe R. ; Liu, Chin Yl ; Holman, Zachary. / Hybrid solar cells from P3HT and silicon nanocrystals. In: Nano Letters. 2009 ; Vol. 9, No. 1. pp. 449-452.
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