David Jones

Phase Transition Modulation and Defect Suppression in Perovskite Solar Cells Enabled by a Self-Sacrificed Template

Zhuang Xiong, Shanshan Chen, Pengjun Zhao, Yongjoon Cho, George Omololu Odunmbaku, Yujie Zheng, David J Jones, Changduk Yang, Kuan Sun

Journal article  |  2021  |  SOLAR RRL

Tunable crystal growth offering highly aligned perovskite crystallites with suppressed deep-level defects is vital for efficient c..

Pyridine End-Capped Polymer to Stabilize Organic Nanoparticle Dispersions for Solar Cell Fabrication through Reversible Pyridinium Salt Formation

Sonam Saxena, Philipp Marlow, Jegadesan Subbiah, Alexander Colsmann, Wallace WH Wong, David J Jones

Journal article  |  2021  |  ACS APPLIED MATERIALS & INTERFACES

Bulk-heterojunction nanoparticle dispersions in water or alcohol can be employed as eco-friendly inks for the fabrication of organ..

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  |  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  |  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  |  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..