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Crystal Engineering for Molecular Organic Semiconductors

Crystal Engineering for Molecular Organic Semiconductors

Objective

"The urgent need to develop inexpensive and ubiquitous solar energy conversion cannot be overstated. Solution processed organic semiconductors can enable this goal as they support drastically less expensive fabrication techniques compared to traditional semiconductors. Molecular organic semiconductors (MOSs) offer many advantages to their more-common pi-conjugated polymer counterparts, however a clear and fundamental challenge to enable the goal of high performance solution-processable molecular organic semiconductor devices is to develop the ability to control the crystal packing, crystalline domain size, and mixing ability (for multicomponent blends) in the thin-film device geometry. The CEMOS project will accomplish this by pioneering innovative methods of “bottom-up” crystal engineering for organic semiconductors. We will employ specifically tailored molecules designed to leverage both thermodynamic and kinetic aspects of molecular organic semiconductor systems to direct and control crystalline packing, promote crystallite nucleation, compatibilize disparate phases, and plasticize inelastic materials. We will demonstrate that our new classes of materials can enable the tuning of the charge carrier transport and morphology in MOS thin films, and we will evaluate their performance in actual thin-film transistor (TFT) and organic photovoltaic (OPV) devices. Our highly interdisciplinary approach, combining material synthesis and device fabrication/evaluation, will not only lead to improvements in the performance and stability of OPVs and TFTs but will also give deep insights into how the crystalline packing—independent from the molecular structure—affects the optoelectronic properties. The success of CEMOS will rapidly advance the performance of MOS devices by enabling reproducible and tuneable performance comparable to traditional semiconductors—but at radically lower processing costs."
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Principal Investigator

Kevin Sivula (Prof.)

Host institution

ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE

Address

Batiment Ce 3316 Station 1
1015 Lausanne

Switzerland

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 1 477 472

Principal Investigator

Kevin Sivula (Prof.)

Administrative Contact

Caroline Vandevyver (Dr.)

Beneficiaries (1)

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ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE

Switzerland

EU Contribution

€ 1 477 472

Project information

Grant agreement ID: 336506

Status

Closed project

  • Start date

    1 January 2014

  • End date

    31 December 2018

Funded under:

FP7-IDEAS-ERC

  • Overall budget:

    € 1 477 472

  • EU contribution

    € 1 477 472

Hosted by:

ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE

Switzerland