Výsledky vyhledávání - "Calvin J. Lee"

Feature Extraction, Selection, and K-Nearest Neighbors Algorithm for Shark Behavior Classification Based on Imbalanced Dataset

Autor: Calvin J. Lee, Hen-Geul Yeh, Yu Yang, Emily N. Meese, Wenlu Zhang, Christopher G. Lowe

Publikováno v: IEEE Sensors Journal. 21:6429-6439

This paper presents the feature extraction, selection and K-Nearest Neighbors (K-NN) algorithm to classify behaviors of sharks based on the data collected by tri-axial acceleration data loggers (ADLs). Because these behaviors are hard to observe in t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5f32a864e27f67faf92fbc7c01d0877f
https://doi.org/10.1109/jsen.2020.3038660

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

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

Publikováno v: The Journal of Physical Chemistry Letters. 12:537-545

The morphology of organic semiconductors is critical to their function in optoelectronic devices and is particularly crucial in the donor-acceptor mixture that comprises the bulk heterojunction of organic solar cells. Here, energy landscapes can play

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0806529a13c30569e76bed0219983f0
https://doi.org/10.1021/acs.jpclett.0c03425

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

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

Publikováno v: Journal of Materials Chemistry C. 8:567-580

In this study we report on a series of 12 small molecular p-type penta- and hexathiophene semiconductors end-capped with either malononitrile (MN), hexyl rhodanine (HR) or dicyano hexyl rhodanine (CHR) acceptors and functionalized with alkyl sidechai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::429538fdd32691f1f4a1234d7b5c5b9a
https://doi.org/10.1039/c9tc05280a

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

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

Publikováno v: Journal of Materials Chemistry A. 7:6312-6326

Sidechain engineering of the benzodithiophene-based high-performance organic solar cell (OSC) material BTR generated four novel p-type small-molecule semiconducting materials to investigate structure–property relationships in p-type organic semicon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ef6e8a6fcd07eaea51764494e120f61c
https://doi.org/10.1039/c9ta00168a

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

Autor: Calvin J. Lee, David J. Jones, Jegadesan Subbiah, Valerie D. Mitchell

Publikováno v: ACS applied materialsinterfaces. 13(1)

Controlling the nanoscale morphology of the photoactive layer by fine-tuning the molecular structure of semiconducting organic materials is one of the most effective ways to improve the power conversion efficiency of organic solar cells. In this cont

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https://pubmed.ncbi.nlm.nih.gov/33347751

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

Autor: David J. Jones, Wallace W. H. Wong, Paul B. Geraghty, Trevor A. Smith, Mohammed A. Jameel, Calvin J. Lee, James L. Banal, Jegadesan Subbiah

Publikováno v: Beilstein Journal of Organic Chemistry, Vol 12, Iss 1, Pp 2298-2314 (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 alkylthiophene catenation process to access bis-, ter-, quater-, and quinquethiophene π-bridges for the synthesis of acceptor�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7d04ede885b89cce8b906350ca1c128
https://doi.org/10.3762/bjoc.12.223

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

Autor: Haotian Wang, Calvin J. Lee, Jegadesan Subbiah, Paul B. Geraghty, David J. Jones

Publikováno v: 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC).

We demonstrate the development of high performance molecular donors for the use in organic solar cells. We modified the known BTR small molecule donor to reduce diffusion rates during thermal annealing by chromophore extension to generate BQR. OPV de

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https://doi.org/10.1109/pvsc.2017.8366080

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