4.8 Article

High-performance ternary blend polymer solar cells involving both energy transfer and hole relay processes

Journal

NATURE COMMUNICATIONS
Volume 6, Issue -, Pages -

Publisher

NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms8327

Keywords

-

Funding

  1. US National Science Foundation grant [NSFCHE-1229089, DMR-1263006]
  2. US, Air Force Office of Scientific Research
  3. US Department of Energy, Office of Science, Materials Sciences and Engineering Division
  4. US Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
  5. Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]
  6. NIST ChiMad programme
  7. Direct For Mathematical & Physical Scien
  8. Division Of Materials Research [1263006] Funding Source: National Science Foundation
  9. Direct For Mathematical & Physical Scien
  10. Division Of Materials Research [1229089] Funding Source: National Science Foundation

Ask authors/readers for more resources

The integration of multiple materials with complementary absorptions into a single junction device is regarded as an efficient way to enhance the power conversion efficiency (PCE) of organic solar cells (OSCs). However, because of increased complexity with one more component, only limited high-performance ternary systems have been demonstrated previously. Here we report an efficient ternary blend OSC with a PCE of 9.2%. We show that the third component can reduce surface trap densities in the ternary blend. Detailed studies unravel that the improved performance results from synergistic effects of enlarged open circuit voltage, suppressed trap-assisted recombination, enhanced light absorption, increased hole extraction, efficient energy transfer and better morphology. The working mechanism and high device performance demonstrate new insights and design guidelines for high-performance ternary blend solar cells and suggest that ternary structure is a promising platform to boost the efficiency of OSCs.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.8
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available