Improvement of external quantum efficiency depressed by visible light-absorbing hole transport material in solid-state semiconductor-sensitized heterojunction solar cells

Choong Sun Lim; Sang Hyuk Im; Jeong Ah Chang; Yong Hui Lee; Hi Jung Kim; Sang Il Seok

doi:10.1039/c1nr11476j

Improvement of external quantum efficiency depressed by visible light-absorbing hole transport material in solid-state semiconductor-sensitized heterojunction solar cells

Choong Sun Lim, Sang Hyuk Im, Jeong Ah Chang, Yong Hui Lee, Hi Jung Kim, Sang Il Seok

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

A mesoporous (mp)-TiO ₂/Sb ₂S ₃/P3HT [poly(3-hexylthiophene)] heterojunction solar cell displays reduced external quantum efficiency (EQE) at a wavelength of approximately 650 nm. This loss in EQE is due to incomplete charge carrier transport because the transportation of charge carriers generated in P3HT by the absorption of light into Sb ₂S ₃ was inefficient, and consequently, the carriers recombined. The depression of the EQE was greatly relieved by introducing the porous structure formed by thermal decomposition of 2,2′- azobisisobutyronitrile (AIBN) into the P3HT layer.

Original language	English
Pages (from-to)	429-432
Number of pages	4
Journal	Nanoscale
Volume	4
Issue number	2
DOIs	https://doi.org/10.1039/c1nr11476j
Publication status	Published - 2012 Jan 21
Externally published	Yes

ASJC Scopus subject areas

General Materials Science

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title = "Improvement of external quantum efficiency depressed by visible light-absorbing hole transport material in solid-state semiconductor-sensitized heterojunction solar cells",

abstract = "A mesoporous (mp)-TiO 2/Sb 2S 3/P3HT [poly(3-hexylthiophene)] heterojunction solar cell displays reduced external quantum efficiency (EQE) at a wavelength of approximately 650 nm. This loss in EQE is due to incomplete charge carrier transport because the transportation of charge carriers generated in P3HT by the absorption of light into Sb 2S 3 was inefficient, and consequently, the carriers recombined. The depression of the EQE was greatly relieved by introducing the porous structure formed by thermal decomposition of 2,2′- azobisisobutyronitrile (AIBN) into the P3HT layer.",

author = "Lim, {Choong Sun} and Im, {Sang Hyuk} and Chang, {Jeong Ah} and Lee, {Yong Hui} and Kim, {Hi Jung} and Seok, {Sang Il}",

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T1 - Improvement of external quantum efficiency depressed by visible light-absorbing hole transport material in solid-state semiconductor-sensitized heterojunction solar cells

AU - Lim, Choong Sun

AU - Im, Sang Hyuk

AU - Chang, Jeong Ah

AU - Lee, Yong Hui

AU - Kim, Hi Jung

AU - Seok, Sang Il

PY - 2012/1/21

Y1 - 2012/1/21

N2 - A mesoporous (mp)-TiO 2/Sb 2S 3/P3HT [poly(3-hexylthiophene)] heterojunction solar cell displays reduced external quantum efficiency (EQE) at a wavelength of approximately 650 nm. This loss in EQE is due to incomplete charge carrier transport because the transportation of charge carriers generated in P3HT by the absorption of light into Sb 2S 3 was inefficient, and consequently, the carriers recombined. The depression of the EQE was greatly relieved by introducing the porous structure formed by thermal decomposition of 2,2′- azobisisobutyronitrile (AIBN) into the P3HT layer.

AB - A mesoporous (mp)-TiO 2/Sb 2S 3/P3HT [poly(3-hexylthiophene)] heterojunction solar cell displays reduced external quantum efficiency (EQE) at a wavelength of approximately 650 nm. This loss in EQE is due to incomplete charge carrier transport because the transportation of charge carriers generated in P3HT by the absorption of light into Sb 2S 3 was inefficient, and consequently, the carriers recombined. The depression of the EQE was greatly relieved by introducing the porous structure formed by thermal decomposition of 2,2′- azobisisobutyronitrile (AIBN) into the P3HT layer.

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JF - Nanoscale

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Improvement of external quantum efficiency depressed by visible light-absorbing hole transport material in solid-state semiconductor-sensitized heterojunction solar cells

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