Simultaneous spin-coating and solvent annealing: Manipulating the active layer morphology to a power conversion efficiency of 9.6% in polymer solar cells

Zhicai He; Feng Liu; Cheng Wang; Jihua Chen; Lilin He; Dennis Nordlund; Hongbin Wu; Thomas P. Russell; Yong Cao

doi:10.1039/c5mh00076a

Simultaneous spin-coating and solvent annealing: Manipulating the active layer morphology to a power conversion efficiency of 9.6% in polymer solar cells

Zhicai He, Feng Liu, Cheng Wang, Jihua Chen, Lilin He, Dennis Nordlund, Hongbin Wu, Thomas P. Russell, Yong Cao

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

34 Scopus citations

Abstract

We developed a simultaneous spin-coating/solvent-annealing process and demonstrated morphology optimization for PTB7 based organic photovoltaics. This novel processing method enhances the edge-on crystalline content in thin films and induces the formation of weak PCBM aggregates. As a result, the efficiency of polymer solar cells increased from 9.2% to a certified high efficiency of 9.61%, owing to an enhanced short-circuit current (J_sc, 18.4 mA cm^-2vs. 17. 5 mA cm^-2) and an improved fill factor.

Original language	English
Pages (from-to)	592-597
Number of pages	6
Journal	Materials Horizons
Volume	2
Issue number	6
DOIs	https://doi.org/10.1039/c5mh00076a
State	Published - Nov 2015

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title = "Simultaneous spin-coating and solvent annealing: Manipulating the active layer morphology to a power conversion efficiency of 9.6% in polymer solar cells",

abstract = "We developed a simultaneous spin-coating/solvent-annealing process and demonstrated morphology optimization for PTB7 based organic photovoltaics. This novel processing method enhances the edge-on crystalline content in thin films and induces the formation of weak PCBM aggregates. As a result, the efficiency of polymer solar cells increased from 9.2% to a certified high efficiency of 9.61%, owing to an enhanced short-circuit current (Jsc, 18.4 mA cm-2vs. 17. 5 mA cm-2) and an improved fill factor.",

author = "Zhicai He and Feng Liu and Cheng Wang and Jihua Chen and Lilin He and Dennis Nordlund and Hongbin Wu and Russell, {Thomas P.} and Yong Cao",

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T1 - Simultaneous spin-coating and solvent annealing

T2 - Manipulating the active layer morphology to a power conversion efficiency of 9.6% in polymer solar cells

AU - He, Zhicai

AU - Liu, Feng

AU - Wang, Cheng

AU - Chen, Jihua

AU - He, Lilin

AU - Nordlund, Dennis

AU - Wu, Hongbin

AU - Russell, Thomas P.

AU - Cao, Yong

PY - 2015/11

Y1 - 2015/11

N2 - We developed a simultaneous spin-coating/solvent-annealing process and demonstrated morphology optimization for PTB7 based organic photovoltaics. This novel processing method enhances the edge-on crystalline content in thin films and induces the formation of weak PCBM aggregates. As a result, the efficiency of polymer solar cells increased from 9.2% to a certified high efficiency of 9.61%, owing to an enhanced short-circuit current (Jsc, 18.4 mA cm-2vs. 17. 5 mA cm-2) and an improved fill factor.

AB - We developed a simultaneous spin-coating/solvent-annealing process and demonstrated morphology optimization for PTB7 based organic photovoltaics. This novel processing method enhances the edge-on crystalline content in thin films and induces the formation of weak PCBM aggregates. As a result, the efficiency of polymer solar cells increased from 9.2% to a certified high efficiency of 9.61%, owing to an enhanced short-circuit current (Jsc, 18.4 mA cm-2vs. 17. 5 mA cm-2) and an improved fill factor.

UR - http://www.scopus.com/inward/record.url?scp=84945531749&partnerID=8YFLogxK

U2 - 10.1039/c5mh00076a

DO - 10.1039/c5mh00076a

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VL - 2

SP - 592

EP - 597

JO - Materials Horizons

JF - Materials Horizons

IS - 6

ER -

Simultaneous spin-coating and solvent annealing: Manipulating the active layer morphology to a power conversion efficiency of 9.6% in polymer solar cells

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