Naphthodithiophene-diketopyrrolopyrrole small molecule donors for efficient solution-processed solar cells

Stephen Loser, Carson J. Bruns, Hiroyuki Miyauchi, Rocío Ponce Ortiz, Antonio Facchetti, Samuel I Stupp, Tobin J Marks

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report the synthesis, characterization, and implementation of various naphtho[2,3-b:6,7-b′]dithiophene (NDT)-based donor molecules for organic photovoltaics (OPVs). When NDT(TDPP) 2 (TDPP = thiophene-capped diketopyrrolopyrrole) contains all branched 2-ethylhexyl chains and is combined with the electron acceptor PC 61BM, a power conversion efficiency (PCE) of 4.06±0.6% is achieved. This respectable PCE is attributed to the broad, high oscillator strength visible absorption, the ordered molecular packing, and a high hole mobility of 0.04 cm 2·V -1· s-1. We find utilizing linear C-12 side chains on either the TDPP or NDT framework dramatically increases the d-spacing, which directly correlates with inferior OPV device performance. This leads to the conclusion that the selection of an appropriate side chain plays a key role in determining OPV device performance of a small molecule donor.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages3-8
Number of pages6
Volume1390
DOIs
Publication statusPublished - 2012
Event2011 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 28 2011Dec 2 2011

Other

Other2011 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/28/1112/2/11

Fingerprint

Nondestructive examination
Solar cells
solar cells
Conversion efficiency
Molecules
molecules
Thiophenes
Hole mobility
hole mobility
Thiophene
thiophenes
oscillator strengths
spacing
Electrons
synthesis
electrons

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Loser, S., Bruns, C. J., Miyauchi, H., Ortiz, R. P., Facchetti, A., Stupp, S. I., & Marks, T. J. (2012). Naphthodithiophene-diketopyrrolopyrrole small molecule donors for efficient solution-processed solar cells. In Materials Research Society Symposium Proceedings (Vol. 1390, pp. 3-8) https://doi.org/10.1557/opl.2012.459

Naphthodithiophene-diketopyrrolopyrrole small molecule donors for efficient solution-processed solar cells. / Loser, Stephen; Bruns, Carson J.; Miyauchi, Hiroyuki; Ortiz, Rocío Ponce; Facchetti, Antonio; Stupp, Samuel I; Marks, Tobin J.

Materials Research Society Symposium Proceedings. Vol. 1390 2012. p. 3-8.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Loser, S, Bruns, CJ, Miyauchi, H, Ortiz, RP, Facchetti, A, Stupp, SI & Marks, TJ 2012, Naphthodithiophene-diketopyrrolopyrrole small molecule donors for efficient solution-processed solar cells. in Materials Research Society Symposium Proceedings. vol. 1390, pp. 3-8, 2011 MRS Fall Meeting, Boston, MA, United States, 11/28/11. https://doi.org/10.1557/opl.2012.459
Loser S, Bruns CJ, Miyauchi H, Ortiz RP, Facchetti A, Stupp SI et al. Naphthodithiophene-diketopyrrolopyrrole small molecule donors for efficient solution-processed solar cells. In Materials Research Society Symposium Proceedings. Vol. 1390. 2012. p. 3-8 https://doi.org/10.1557/opl.2012.459
Loser, Stephen ; Bruns, Carson J. ; Miyauchi, Hiroyuki ; Ortiz, Rocío Ponce ; Facchetti, Antonio ; Stupp, Samuel I ; Marks, Tobin J. / Naphthodithiophene-diketopyrrolopyrrole small molecule donors for efficient solution-processed solar cells. Materials Research Society Symposium Proceedings. Vol. 1390 2012. pp. 3-8
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