Toward interaction of sensitizer and functional moieties in hole-transporting materials for efficient semiconductor-sensitized solar cells

Sang Hyuk Im, Choong Sun Lim, Jeong Ah Chang, Yong Hui Lee, Nilkamal Maiti, Hi Jung Kim, Md K. Nazeeruddin, Michael Grätzel, Sang Il Seok

Research output: Contribution to journalArticle

185 Citations (Scopus)

Abstract

Sb2S3-sensitized mesoporous-TiO2 solar cells using several conjugated polymers as hole-transporting materials (HTMs) are fabricated. We found that the cell performance was strongly correlated with the chemical interaction at the interface of Sb2S3 as sensitizer and the HTMs through the thiophene moieties, which led to a higher fill factor (FF), open-circuit voltage (Voc), and short-circuit current density (Jsc). With the application of PCPDTBT (poly(2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b']dithiophene)-alt-4, 7(2,1,3-benzothiadiazole)) as a HTM in a Sb2S3-sensitized solar cell, overall power conversion efficiencies of 6.18, 6.57, and 6.53% at 100, 50, and 10% solar irradiation, respectively, were achieved with a metal mask.

Original languageEnglish
Pages (from-to)4789-4793
Number of pages5
JournalNano Letters
Volume11
Issue number11
DOIs
Publication statusPublished - 2011 Nov 9
Externally publishedYes

Fingerprint

Solar cells
solar cells
Semiconductor materials
Thiophenes
Conjugated polymers
interactions
Thiophene
Open circuit voltage
short circuit currents
thiophenes
open circuit voltage
Short circuit currents
Conversion efficiency
Masks
Current density
masks
Metals
Irradiation
current density
irradiation

ASJC Scopus subject areas

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

Cite this

Toward interaction of sensitizer and functional moieties in hole-transporting materials for efficient semiconductor-sensitized solar cells. / Im, Sang Hyuk; Lim, Choong Sun; Chang, Jeong Ah; Lee, Yong Hui; Maiti, Nilkamal; Kim, Hi Jung; Nazeeruddin, Md K.; Grätzel, Michael; Seok, Sang Il.

In: Nano Letters, Vol. 11, No. 11, 09.11.2011, p. 4789-4793.

Research output: Contribution to journalArticle

Im, SH, Lim, CS, Chang, JA, Lee, YH, Maiti, N, Kim, HJ, Nazeeruddin, MK, Grätzel, M & Seok, SI 2011, 'Toward interaction of sensitizer and functional moieties in hole-transporting materials for efficient semiconductor-sensitized solar cells', Nano Letters, vol. 11, no. 11, pp. 4789-4793. https://doi.org/10.1021/nl2026184
Im, Sang Hyuk ; Lim, Choong Sun ; Chang, Jeong Ah ; Lee, Yong Hui ; Maiti, Nilkamal ; Kim, Hi Jung ; Nazeeruddin, Md K. ; Grätzel, Michael ; Seok, Sang Il. / Toward interaction of sensitizer and functional moieties in hole-transporting materials for efficient semiconductor-sensitized solar cells. In: Nano Letters. 2011 ; Vol. 11, No. 11. pp. 4789-4793.
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