Calvin Lee

Spontaneous Formation of a Ligand-Based 2D Capping Layer on the Surface of Quasi-2D Perovskite Films

Fei Zheng, Thomas Raeber, Sergey Rubanov, Calvin Lee, Aaron Seeber, Christopher Hall, Trevor A Smith, Mei Gao, Dechan Angmo, Kenneth P Ghiggino

Journal article  |  2022  |  ACS APPLIED MATERIALS & INTERFACES

Two-dimensional (2D) Ruddlesden-Popper phase perovskites (RPPs) are attracting growing attention for photovoltaic applications due..

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..

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..

Solubilizing core modifications on high-performing benzodithiophene-based molecular semiconductors and their influences on film nanostructure and photovoltaic performance

Calvin J Lee, Valerie D Mitchell, Jonathan White, Xuechen Jiao, Christopher R McNeill, Jegadesan Subbiah, David J Jones

Journal article  |  2019  |  JOURNAL OF MATERIALS CHEMISTRY A

Sidechain engineering of the benzodithiophene-based high-performance organic solar cell (OSC) material BTR generated four novel p-..

Morphological advancements through sidechain engineering for organic photovoltaic applications

Calvin Jun Hao Lee

Thesis / Dissertation  |  2019

Organic photovoltaics (OPV) materials are an established class of light-harvesting, solution-processable organic semiconductors. T..

High performance molecular donors for organic solar cells, materials design and device optimization

Paul Geraghty, Haotian Wang, Calvin Lee, Jegadesan Subbiah, David Jones

Conference Proceedings  |  2017  |  2017 IEEE 44TH PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC)

High performance p-type molecular electron donors for OPV applications via alkylthiophene catenation chromophore extension

Paul B Geraghty, Calvin Lee, Jegadesan Subbiah, Wallace WH Wong, James L Banal, Mohammed A Jameel, Trevor A Smith, David J Jones

Journal article  |  2016  |  BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY

The synthesis of key 4-alkyl-substituted 5-(trimethylsilyl)thiophene-2-boronic acid pinacol esters 3 allowed a simplified alkylthi..