Carbon nanotube chirality determines efficiency of electron transfer to fullerene in all-carbon photovoltaics

Christine M. Isborn; Chun Tang; Ashlie Martini; Erin R. Johnson; Alberto Otero-De-La-Roza; Vincent C. Tung

doi:10.1021/jz401369s

Carbon nanotube chirality determines efficiency of electron transfer to fullerene in all-carbon photovoltaics

Christine M. Isborn^*, Chun Tang, Ashlie Martini, Erin R. Johnson, Alberto Otero-De-La-Roza, Vincent C. Tung

^*Corresponding author for this work

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

50 Scopus citations

Abstract

Nanocarbon-based photovoltaics offer a promising new architecture for the next generation of solar cells. We demonstrate that a key factor determining the efficiency of single-walled carbon nanotube (SWCNT)/fullerene devices is the chirality of the SWCNT. This is shown via current density vs voltage measurements of nanocarbon devices prepared with (9,7), (7,6) and (6,5) SWCNTs, as well as density-functional theory (DFT) density of states calculations of C₆₀ adsorbed onto the corresponding SWCNTs. The trends in efficiency are rationalized in terms of the relative energies of the fullerene and SWCNT conduction band energy levels.

Original language	English (US)
Pages (from-to)	2914-2918
Number of pages	5
Journal	Journal of Physical Chemistry Letters
Volume	4
Issue number	17
DOIs	https://doi.org/10.1021/jz401369s
State	Published - Sep 5 2013
Externally published	Yes

Keywords

carbon nanotubes
charge transfer
chirality
exciton dissociation
photovoltaics

ASJC Scopus subject areas

General Materials Science
Physical and Theoretical Chemistry

Access to Document

10.1021/jz401369s

Cite this

@article{91a62a478b034fd7a6e000c3af2e6357,

title = "Carbon nanotube chirality determines efficiency of electron transfer to fullerene in all-carbon photovoltaics",

abstract = "Nanocarbon-based photovoltaics offer a promising new architecture for the next generation of solar cells. We demonstrate that a key factor determining the efficiency of single-walled carbon nanotube (SWCNT)/fullerene devices is the chirality of the SWCNT. This is shown via current density vs voltage measurements of nanocarbon devices prepared with (9,7), (7,6) and (6,5) SWCNTs, as well as density-functional theory (DFT) density of states calculations of C60 adsorbed onto the corresponding SWCNTs. The trends in efficiency are rationalized in terms of the relative energies of the fullerene and SWCNT conduction band energy levels.",

keywords = "carbon nanotubes, charge transfer, chirality, exciton dissociation, photovoltaics",

author = "Isborn, {Christine M.} and Chun Tang and Ashlie Martini and Johnson, {Erin R.} and Alberto Otero-De-La-Roza and Tung, {Vincent C.}",

year = "2013",

month = sep,

day = "5",

doi = "10.1021/jz401369s",

language = "English (US)",

volume = "4",

pages = "2914--2918",

journal = "Journal of Physical Chemistry Letters",

issn = "1948-7185",

publisher = "American Chemical Society",

number = "17",

}

TY - JOUR

T1 - Carbon nanotube chirality determines efficiency of electron transfer to fullerene in all-carbon photovoltaics

AU - Isborn, Christine M.

AU - Tang, Chun

AU - Martini, Ashlie

AU - Johnson, Erin R.

AU - Otero-De-La-Roza, Alberto

AU - Tung, Vincent C.

PY - 2013/9/5

Y1 - 2013/9/5

N2 - Nanocarbon-based photovoltaics offer a promising new architecture for the next generation of solar cells. We demonstrate that a key factor determining the efficiency of single-walled carbon nanotube (SWCNT)/fullerene devices is the chirality of the SWCNT. This is shown via current density vs voltage measurements of nanocarbon devices prepared with (9,7), (7,6) and (6,5) SWCNTs, as well as density-functional theory (DFT) density of states calculations of C60 adsorbed onto the corresponding SWCNTs. The trends in efficiency are rationalized in terms of the relative energies of the fullerene and SWCNT conduction band energy levels.

AB - Nanocarbon-based photovoltaics offer a promising new architecture for the next generation of solar cells. We demonstrate that a key factor determining the efficiency of single-walled carbon nanotube (SWCNT)/fullerene devices is the chirality of the SWCNT. This is shown via current density vs voltage measurements of nanocarbon devices prepared with (9,7), (7,6) and (6,5) SWCNTs, as well as density-functional theory (DFT) density of states calculations of C60 adsorbed onto the corresponding SWCNTs. The trends in efficiency are rationalized in terms of the relative energies of the fullerene and SWCNT conduction band energy levels.

KW - carbon nanotubes

KW - charge transfer

KW - chirality

KW - exciton dissociation

KW - photovoltaics

UR - http://www.scopus.com/inward/record.url?scp=84883805452&partnerID=8YFLogxK

U2 - 10.1021/jz401369s

DO - 10.1021/jz401369s

M3 - Article

AN - SCOPUS:84883805452

SN - 1948-7185

VL - 4

SP - 2914

EP - 2918

JO - Journal of Physical Chemistry Letters

JF - Journal of Physical Chemistry Letters

IS - 17

ER -

Carbon nanotube chirality determines efficiency of electron transfer to fullerene in all-carbon photovoltaics

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this