Charge transfer highways in polymer solar cells embedded with imprinted PEDOT:PSS gratings

Chia Te Yen, Fu Chiao Wu, Horng Long Cheng, Hwo Shuenn Sheu, Fu Ching Tang, Wei Yang Chou

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This study presents the developed poly(3-hexylthiophene):indene-C60 bisadduct (P3HT:ICBA)-based organic solar cells, where nanoimprinted poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) gratings successfully functioned as charge transport highways and induced an ICBA-rich surface. The embedded nanostructures improved light harvesting and contact area; however, these two factors were not the primary enhancers of solar cell performance. Atomic force microscopy and conductive atomic force microscopy revealed that the imprinted PEDOT:PSS gratings activated hole- and electron-conducting pathways. This result can be attributed to the enhancement of the π-π orbital overlap between P3HT and PEDOT:PSS polymer chains and to the grating-induced ICBA phase separation. These two effects were the primary factors that increased the short-circuit current of the imprinted devices, which resulted in the increase of power conversion efficiency. In-plane and out-of-plane grazing incident X-ray diffraction revealed that the chain orientation of P3HT on the PEDOT:PSS gratings was the same as that on the plane PEDOT:PSS surface. This study proved the feasibility of nanoimprinting for organic solar cells, as well as for organic field-effect transistors. This journal is

Original languageEnglish
Pages (from-to)58342-58348
Number of pages7
JournalRSC Advances
Volume4
Issue number102
DOIs
Publication statusPublished - 2014

Fingerprint

Charge transfer
Atomic force microscopy
Organic field effect transistors
Phase separation
Short circuit currents
Conversion efficiency
Nanostructures
Solar cells
X ray diffraction
Electrons
Polymers
Organic solar cells
Polymer solar cells
poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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title = "Charge transfer highways in polymer solar cells embedded with imprinted PEDOT:PSS gratings",
abstract = "This study presents the developed poly(3-hexylthiophene):indene-C60 bisadduct (P3HT:ICBA)-based organic solar cells, where nanoimprinted poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) gratings successfully functioned as charge transport highways and induced an ICBA-rich surface. The embedded nanostructures improved light harvesting and contact area; however, these two factors were not the primary enhancers of solar cell performance. Atomic force microscopy and conductive atomic force microscopy revealed that the imprinted PEDOT:PSS gratings activated hole- and electron-conducting pathways. This result can be attributed to the enhancement of the π-π orbital overlap between P3HT and PEDOT:PSS polymer chains and to the grating-induced ICBA phase separation. These two effects were the primary factors that increased the short-circuit current of the imprinted devices, which resulted in the increase of power conversion efficiency. In-plane and out-of-plane grazing incident X-ray diffraction revealed that the chain orientation of P3HT on the PEDOT:PSS gratings was the same as that on the plane PEDOT:PSS surface. This study proved the feasibility of nanoimprinting for organic solar cells, as well as for organic field-effect transistors. This journal is",
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Charge transfer highways in polymer solar cells embedded with imprinted PEDOT:PSS gratings. / Yen, Chia Te; Wu, Fu Chiao; Cheng, Horng Long; Sheu, Hwo Shuenn; Tang, Fu Ching; Chou, Wei Yang.

In: RSC Advances, Vol. 4, No. 102, 2014, p. 58342-58348.

Research output: Contribution to journalArticle

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AU - Yen, Chia Te

AU - Wu, Fu Chiao

AU - Cheng, Horng Long

AU - Sheu, Hwo Shuenn

AU - Tang, Fu Ching

AU - Chou, Wei Yang

PY - 2014

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