4P-NPD ultra thin-films as efficient exciton blocking layers in DBP/C70 based organic solar cells

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Resumé

Exciton blocking effects from ultra thin layers of N,N'-di-1-naphthalenyl-N,N'-diphenyl [1,1':4',1'':4'',1'''-quaterphenyl]-4,4'''-diamine (4P-NPD) was investigated in small molecule based inverted Organic Solar Cells (OSCs) using Tetraphenyldibenzoperiflanthene (DBP) as the electron donor material and fullerene (C70) as the electron acceptor material. The short-circuit current density (Jsc) and PCE of the optimized OSCs with 0.7 nm thick 4P-NPD were approx. 16 % and 24 % higher, respectively, compared to reference devices without exciton blocking layers. Drift diffusion based device modeling was conducted to model the full Current density – Voltage (JV) characteristics and EQE spectrum of the OSCs, and photoluminescence measurements was conducted to investigate the exciton blocking effects with increasing thicknesses of the 4P-NPD layer. Importantly, coupled optical and electrical modeling studies of the device behaviors and exciton generation rates and densities in the active layer for different 4P-NPD layer thicknesses were conducted, in order to gain a complete understanding of the observed increase in PCE for 4P-NPD layer thicknesses up to 1 nm, and the observed decrease in PCE for layer thicknesses beyond 1 nm. This work demonstrates a route for guiding the integration of exciton blocking layers in organic solar cell devices.
OriginalsprogEngelsk
Artikelnummer385101
TidsskriftJournal of Physics D: Applied Physics
Vol/bind50
Udgave nummer38
Antal sider8
ISSN0022-3727
DOI
StatusUdgivet - 2017

Fingeraftryk

Ultrathin films
Excitons
solar cells
excitons
thin films
Current density
Diamines
Electrons
Fullerenes
Short circuit currents
acceptor materials
donor materials
current density
Photoluminescence
Organic solar cells
LDS 751
neodymium pyrocatechin disulfonate
short circuit currents
diamines
Molecules

Citer dette

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title = "4P-NPD ultra thin-films as efficient exciton blocking layers in DBP/C70 based organic solar cells",
abstract = "Exciton blocking effects from ultra thin layers of N,N'-di-1-naphthalenyl-N,N'-diphenyl [1,1':4',1'':4'',1'''-quaterphenyl]-4,4'''-diamine (4P-NPD) was investigated in small molecule based inverted Organic Solar Cells (OSCs) using Tetraphenyldibenzoperiflanthene (DBP) as the electron donor material and fullerene (C70) as the electron acceptor material. The short-circuit current density (Jsc) and PCE of the optimized OSCs with 0.7 nm thick 4P-NPD were approx. 16 {\%} and 24 {\%} higher, respectively, compared to reference devices without exciton blocking layers. Drift diffusion based device modeling was conducted to model the full Current density – Voltage (JV) characteristics and EQE spectrum of the OSCs, and photoluminescence measurements was conducted to investigate the exciton blocking effects with increasing thicknesses of the 4P-NPD layer. Importantly, coupled optical and electrical modeling studies of the device behaviors and exciton generation rates and densities in the active layer for different 4P-NPD layer thicknesses were conducted, in order to gain a complete understanding of the observed increase in PCE for 4P-NPD layer thicknesses up to 1 nm, and the observed decrease in PCE for layer thicknesses beyond 1 nm. This work demonstrates a route for guiding the integration of exciton blocking layers in organic solar cell devices.",
author = "Patil, {Bhushan Ramesh} and Yiming Liu and Talha Qamar and Horst-G{\"u}nter Rubahn and Morten Madsen",
year = "2017",
doi = "10.1088/1361-6463/aa7f1c",
language = "English",
volume = "50",
journal = "Journal of Physics D: Applied Physics",
issn = "0022-3727",
publisher = "IOP Publishing",
number = "38",

}

4P-NPD ultra thin-films as efficient exciton blocking layers in DBP/C70 based organic solar cells. / Patil, Bhushan Ramesh; Liu, Yiming; Qamar, Talha; Rubahn, Horst-Günter; Madsen, Morten.

I: Journal of Physics D: Applied Physics, Bind 50, Nr. 38, 385101, 2017.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - 4P-NPD ultra thin-films as efficient exciton blocking layers in DBP/C70 based organic solar cells

AU - Patil, Bhushan Ramesh

AU - Liu, Yiming

AU - Qamar, Talha

AU - Rubahn, Horst-Günter

AU - Madsen, Morten

PY - 2017

Y1 - 2017

N2 - Exciton blocking effects from ultra thin layers of N,N'-di-1-naphthalenyl-N,N'-diphenyl [1,1':4',1'':4'',1'''-quaterphenyl]-4,4'''-diamine (4P-NPD) was investigated in small molecule based inverted Organic Solar Cells (OSCs) using Tetraphenyldibenzoperiflanthene (DBP) as the electron donor material and fullerene (C70) as the electron acceptor material. The short-circuit current density (Jsc) and PCE of the optimized OSCs with 0.7 nm thick 4P-NPD were approx. 16 % and 24 % higher, respectively, compared to reference devices without exciton blocking layers. Drift diffusion based device modeling was conducted to model the full Current density – Voltage (JV) characteristics and EQE spectrum of the OSCs, and photoluminescence measurements was conducted to investigate the exciton blocking effects with increasing thicknesses of the 4P-NPD layer. Importantly, coupled optical and electrical modeling studies of the device behaviors and exciton generation rates and densities in the active layer for different 4P-NPD layer thicknesses were conducted, in order to gain a complete understanding of the observed increase in PCE for 4P-NPD layer thicknesses up to 1 nm, and the observed decrease in PCE for layer thicknesses beyond 1 nm. This work demonstrates a route for guiding the integration of exciton blocking layers in organic solar cell devices.

AB - Exciton blocking effects from ultra thin layers of N,N'-di-1-naphthalenyl-N,N'-diphenyl [1,1':4',1'':4'',1'''-quaterphenyl]-4,4'''-diamine (4P-NPD) was investigated in small molecule based inverted Organic Solar Cells (OSCs) using Tetraphenyldibenzoperiflanthene (DBP) as the electron donor material and fullerene (C70) as the electron acceptor material. The short-circuit current density (Jsc) and PCE of the optimized OSCs with 0.7 nm thick 4P-NPD were approx. 16 % and 24 % higher, respectively, compared to reference devices without exciton blocking layers. Drift diffusion based device modeling was conducted to model the full Current density – Voltage (JV) characteristics and EQE spectrum of the OSCs, and photoluminescence measurements was conducted to investigate the exciton blocking effects with increasing thicknesses of the 4P-NPD layer. Importantly, coupled optical and electrical modeling studies of the device behaviors and exciton generation rates and densities in the active layer for different 4P-NPD layer thicknesses were conducted, in order to gain a complete understanding of the observed increase in PCE for 4P-NPD layer thicknesses up to 1 nm, and the observed decrease in PCE for layer thicknesses beyond 1 nm. This work demonstrates a route for guiding the integration of exciton blocking layers in organic solar cell devices.

U2 - 10.1088/1361-6463/aa7f1c

DO - 10.1088/1361-6463/aa7f1c

M3 - Journal article

VL - 50

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

SN - 0022-3727

IS - 38

M1 - 385101

ER -