David Jones

Conjugated block copolymers, methods of preparation and their use in heterojunction devices

A Holmes, D Jones, WHW Wong, S Haque

The invention relates to block copolymers having both electron donor and electron acceptor monomer units and to methods for their ..

Continuous process for the functionalization of fullerenes

D Jones, WHW Wong, A Holmes, H Seyler

A continuous process for the functionalization of fullerenes is disclosed. The process offers numerous advantages in comparison to..

Novel polymers and their use in organic photovoltaics

M Chen, M Gao, S Watkins, J Subbiah, W Wong, B Purushothaman, D Jones, A Holmes

High molar mass electron donor (p-type) conjugated polymers are described. The polymers comprise donor groups based upon benzodith..

Dendritic heteroatom compounds, derivatives thereof and their use in heterojunction devices

A Holmes, D Jones, WHW Wong, C Ma, P Bauerle

The invention relates to polyarom. and polyheteroarom. compds. and derivs. thereof. The compds. display high soly. in org. solvent..

Active layer morphology control in organic thin films

DJ Jones, WWH Wong, HH Dam, K Sun

There are provided interface modifiers for template morphol. development in org. thin films. The interface modifiers may surface a..

Morphological Requirements for Nanoscale Electric Field Buildup in a Bulk Heterojunction Solar Cell.

Kyra N Schwarz, Valerie D Mitchell, Saeed-Uz-Zaman Khan, Calvin Lee, Adam Reinhold, Trevor A Smith, Kenneth P Ghiggino, David J Jones, Barry P Rand, Gregory D Scholes

Journal article  |  2021  |  The Journal of Physical Chemistry Letters

The morphology of organic semiconductors is critical to their function in optoelectronic devices and is particularly crucial in th..

Effect of Side-Chain Modification on the Active Layer Morphology and Photovoltaic Performance of Liquid Crystalline Molecular Materials

Jegadesan Subbiah, Calvin J Lee, Valerie D Mitchell, David J Jones

Journal article  |  2021  |  ACS Applied Materials & Interfaces

Controlling the nanoscale morphology of the photoactive layer by fine-tuning the molecular structure of semiconducting organic mat..

Experimental Evidence Relating Charge-Transfer-State Kinetics and Strongly Reduced Bimolecular Recombination in Organic Solar Cells

Nasim Zarrabi, Oskar J Sandberg, Christina Kaiser, Jegadesan Subbiah, David J Jones, Paul Meredith, Ardalan Armin

Journal article  |  2020  |  The Journal of Physical Chemistry Letters

Significantly reduced bimolecular recombination relative to the Langevin recombination rate has been observed in a limited number ..

FRET-enhanced photoluminescence of perylene diimides by combining molecular aggregation and insulation

Bolong Zhang, Igor Lyskov, Lachlan J Wilson, Randy P Sabatini, Anjay Manian, Hamid Soleimaninejad, Jonathan M White, Trevor A Smith, Girish Lakhwani, David J Jones, Kenneth P Ghiggino, Salvy P Russo, Wallace WH Wong

Journal article  |  2020  |  Journal of Materials Chemistry C

The photoluminescence quantum yield (ϕPL) of perylene diimide derivatives (PDIs) is often limited by aggregation caused quenching ..

Competitive Triplet Formation and Recombination in Crystalline Films of Perylenediimide Derivatives: Implications for Singlet Fission

Saghar Masoomi-Godarzi, Christopher R Hall, Bolong Zhang, Mark A Gregory, Jonathan M White, Wallace WH Wong, Kenneth P Ghiggino, Trevor A Smith, David J Jones

Journal article  |  2020  |  The Journal of Physical Chemistry C

Developing photostable compounds that undergo quantitative singlet fission (SF) is a key challenge. As SF necessitates electron tr..

Reduced Recombination and Capacitor-like Charge Buildup in an Organic Heterojunction

Kyra N Schwarz, Paul B Geraghty, Valerie D Mitchell, Saeed-Uz-Zaman Khan, Oskar J Sandberg, Nasim Zarrabi, Bryan Kudisch, Jegadesan Subbiah, Trevor A Smith, Barry P Rand, Ardalan Armin, Gregory D Scholes, David J Jones, Kenneth P Ghiggino

Journal article  |  2020  |  Journal of the American Chemical Society

Organic photovoltaic (OPV) efficiencies continue to rise, raising their prospects for solar energy conversion. However, researcher..

Theoretical Aspects of Iterative Coupling for Linear Oligomers and Polymers

Nicolau Saker Neto, David John Jones, Wallace Wing Ho Wong

Journal article  |  2020  |  Macromolecular Theory and Simulations

A conceptual study of iterative coupling (IC) is performed, providing a unified description and new research directions. IC chain ..

A structural study of p-type A-D-A oligothiophenes: effects of regioregular alkyl sidechains on annealing processes and photovoltaic performances

Calvin J Lee, Fadi M Jradi, Valerie D Mitchell, Jonathan White, Christopher R McNeill, Jegadesan Subbiah, Seth Marder, David J Jones

Journal article  |  2020  |  Journal of Materials Chemistry C

In this study we report on a series of 12 small molecular p-type penta- and hexathiophene semiconductors end-capped with either ma..

Amphiphilic conjugated polymers for nanoparticle stabilization

Sonam Saxena, Jegadesan Subbiah, Philipp Meier, Alexander Colsmann, Wallace Wong, David Jones

Conference Proceedings  |  2019  |  ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY

High-Performance Large-Area Luminescence Solar Concentrator Incorporating a Donor-Emitter Fluorophore System

Bolong Zhang, Pengjun Zhao, Lachlan J Wilson, Jegadesan Subbiah, Hanbo Yang, Paul Mulvaney, David J Jones, Kenneth P Ghiggino, Wallace WH Wong

Journal article  |  2019  |  ACS Energy Letters

A high-performance large-area luminescent solar concentrator (LSC) is demonstrated, fabricated via careful choice of the fluoropho..