Solution p-doped fluorescent polymers for enhanced charge transport of hybrid organic-silicon nanowire photovoltaics

Pei Ting Tsai; Ming Chin Li; Yi Chun Lai; Wei Hsuan Tseng; Chih I. Wu; Si Han Chen; Yi Cheng Lin; Yu Cheng Chen; Rui Chung Hsiao; Sheng Fu Horng; Pei-Chen Yu; Hsin-Fei Meng

doi:10.1016/j.orgel.2016.04.005

Solution p-doped fluorescent polymers for enhanced charge transport of hybrid organic-silicon nanowire photovoltaics

Pei Ting Tsai, Ming Chin Li, Yi Chun Lai, Wei Hsuan Tseng, Chih I. Wu, Si Han Chen, Yi Cheng Lin, Yu Cheng Chen, Rui Chung Hsiao, Sheng Fu Horng, Pei-Chen Yu^*, Hsin-Fei Meng

^*Corresponding author for this work

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

6 Scopus citations

Abstract

The solution p-type doping of various conjugated polymers and small molecules via blending with tetrafluorotetracyano-quinodimethane (F4-TCNQ) is investigated to facilitate hole transport for hybrid organic-silicon-nanowire solar cells. Among all, the highly-fluorescent conjugated polymers such as poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO) demonstrate superior transport characteristics, where both the device fill-factor and power conversion efficiency (PCE) are positively correlated with the doping concentration. The best PCE achieves 13.66% from the device with 30% p-doped PFO, compared to the reference at 12.50%. The enhancement is ascribed to the efficient interfacial charge-carrier recombination with minimal energy losses. A vertically graded doping profile is further revealed with F4-TCNQ molecules preferentially accumulated near the silicon surface.

Original language	English
Pages (from-to)	246-253
Number of pages	8
Journal	Organic Electronics
Volume	34
DOIs	https://doi.org/10.1016/j.orgel.2016.04.005
State	Published - 1 Jul 2016

Keywords

Charge transport
Heterojunction
Hybrid solar cell
Interface engineering
Surface recombination

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@article{bf4dc9e7d8aa4f9f92a0e40b3d574d69,

title = "Solution p-doped fluorescent polymers for enhanced charge transport of hybrid organic-silicon nanowire photovoltaics",

abstract = "The solution p-type doping of various conjugated polymers and small molecules via blending with tetrafluorotetracyano-quinodimethane (F4-TCNQ) is investigated to facilitate hole transport for hybrid organic-silicon-nanowire solar cells. Among all, the highly-fluorescent conjugated polymers such as poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO) demonstrate superior transport characteristics, where both the device fill-factor and power conversion efficiency (PCE) are positively correlated with the doping concentration. The best PCE achieves 13.66% from the device with 30% p-doped PFO, compared to the reference at 12.50%. The enhancement is ascribed to the efficient interfacial charge-carrier recombination with minimal energy losses. A vertically graded doping profile is further revealed with F4-TCNQ molecules preferentially accumulated near the silicon surface.",

keywords = "Charge transport, Heterojunction, Hybrid solar cell, Interface engineering, Surface recombination",

author = "Tsai, {Pei Ting} and Li, {Ming Chin} and Lai, {Yi Chun} and Tseng, {Wei Hsuan} and Wu, {Chih I.} and Chen, {Si Han} and Lin, {Yi Cheng} and Chen, {Yu Cheng} and Hsiao, {Rui Chung} and Horng, {Sheng Fu} and Pei-Chen Yu and Hsin-Fei Meng",

year = "2016",

month = jul,

day = "1",

doi = "10.1016/j.orgel.2016.04.005",

language = "English",

volume = "34",

pages = "246--253",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Solution p-doped fluorescent polymers for enhanced charge transport of hybrid organic-silicon nanowire photovoltaics

AU - Tsai, Pei Ting

AU - Li, Ming Chin

AU - Lai, Yi Chun

AU - Tseng, Wei Hsuan

AU - Wu, Chih I.

AU - Chen, Si Han

AU - Lin, Yi Cheng

AU - Chen, Yu Cheng

AU - Hsiao, Rui Chung

AU - Horng, Sheng Fu

AU - Yu, Pei-Chen

AU - Meng, Hsin-Fei

PY - 2016/7/1

Y1 - 2016/7/1

N2 - The solution p-type doping of various conjugated polymers and small molecules via blending with tetrafluorotetracyano-quinodimethane (F4-TCNQ) is investigated to facilitate hole transport for hybrid organic-silicon-nanowire solar cells. Among all, the highly-fluorescent conjugated polymers such as poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO) demonstrate superior transport characteristics, where both the device fill-factor and power conversion efficiency (PCE) are positively correlated with the doping concentration. The best PCE achieves 13.66% from the device with 30% p-doped PFO, compared to the reference at 12.50%. The enhancement is ascribed to the efficient interfacial charge-carrier recombination with minimal energy losses. A vertically graded doping profile is further revealed with F4-TCNQ molecules preferentially accumulated near the silicon surface.

AB - The solution p-type doping of various conjugated polymers and small molecules via blending with tetrafluorotetracyano-quinodimethane (F4-TCNQ) is investigated to facilitate hole transport for hybrid organic-silicon-nanowire solar cells. Among all, the highly-fluorescent conjugated polymers such as poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO) demonstrate superior transport characteristics, where both the device fill-factor and power conversion efficiency (PCE) are positively correlated with the doping concentration. The best PCE achieves 13.66% from the device with 30% p-doped PFO, compared to the reference at 12.50%. The enhancement is ascribed to the efficient interfacial charge-carrier recombination with minimal energy losses. A vertically graded doping profile is further revealed with F4-TCNQ molecules preferentially accumulated near the silicon surface.

KW - Charge transport

KW - Heterojunction

KW - Hybrid solar cell

KW - Interface engineering

KW - Surface recombination

UR - http://www.scopus.com/inward/record.url?scp=84964862497&partnerID=8YFLogxK

U2 - 10.1016/j.orgel.2016.04.005

DO - 10.1016/j.orgel.2016.04.005

M3 - Article

AN - SCOPUS:84964862497

SN - 1566-1199

VL - 34

SP - 246

EP - 253

JO - Organic Electronics

JF - Organic Electronics

ER -

Solution p-doped fluorescent polymers for enhanced charge transport of hybrid organic-silicon nanowire photovoltaics

Abstract

Keywords

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