Comment on: “Optical limiting action of 2-amino 5-nitro pyridinium chloride crystal for laser safety devices” [(2018) Mol. Cryst. Liq. Cryst. 669, 114-125]

Sahebi, Ramezan

doi:10.1080/15421406.2020.1848252

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…Therefore, n‐type organic semiconductors must have a LUMO level deeper than 4 eV for electron transport in the ambient atmosphere. Molecular aggregation of molecules such as crystal causes a polarization energy shift of ∼1 eV or more for the molecules with typical dielectric constant [30] . Thus, isolated molecules with EA of 3 eV or more should be expected to have a deep LUMO level over 4 eV in a solid state and explored for n‐type organic semiconductors.…”

Section: Introductionmentioning

confidence: 99%

Universally Exhaustive Generation of Molecular Structures and Prediction of Their Electronic States Using Machine Learning for N‐type Organic Transistor Materials

Ohno

Hanna

Iino

et al. 2023

Chemistry An Asian Journal

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We have proposed a new method for the exploration of organic functional molecules, using an exhaustive molecular generator combined without combinatorial explosion and electronic state predicted by machine learning and adapted for developing n‐type organic semiconductor molecules for field‐effect transistors. Our method first enumerates skeletal structures as much as possible and next generates fused ring structures using substitution operations for atomic nodes and bond edges. We have succeeded in generating more than 4.8 million molecules. We calculated the electron affinity (EA) of about 51 thousand molecules with DFT calculation and trained the graph neural networks to estimate EA values of generated molecules. Finally, we obtained the 727 thousand molecules as candidates that satisfy EA values over 3 eV. The number of these possible candidate molecules is far beyond what we have been able to propose based on our knowledge and experience in synthetic chemistry, indicating a wide diversity of organic molecules.

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Section: Introductionmentioning

confidence: 99%

Universally Exhaustive Generation of Molecular Structures and Prediction of Their Electronic States Using Machine Learning for N‐type Organic Transistor Materials

Ohno

Hanna

Iino

et al. 2023

Chemistry An Asian Journal

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“…[2,3] This limitation has been overcome by the blended junction cells fabricated using the codeposition technique for small-molecule organic solar cells. [4,5] However, it is extremely difficult to construct a transport route for the collection of carriers [6][7][8][9] in them since the electrons and holes can only move through acceptor and donor molecules. The limitations owing to the transport of carriers and film thickness in conventional solar cells can be overcome by the recently developed concept of lateral organic solar cells.…”

Section: Introductionmentioning

confidence: 99%

Doped Lateral Organic Photovoltaic Cells

Ithikkal

Izawa

Hiramoto

2023

Physica Status Solidi (a)

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Doping effects on organic lateral photovoltaic cells with separated carrier‐generating and doped carrier‐transporting layers are investigated. A doping concentration of 100 ppm into the lateral hole and electron transporting layers doubles the photocurrent density by forming a built‐in potential between the layers in the vertical direction of the lateral cell, which accelerates carrier generation. A higher doping concentration induces trap‐assisted recombination at direct C8‐BTBT/PTCDI‐C8 contact points and causes a decrease in photocurrent density.

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Comment on: “Optical limiting action of 2-amino 5-nitro pyridinium chloride crystal for laser safety devices” [(2018) Mol. Cryst. Liq. Cryst. 669, 114-125]

Cited by 2 publications

References 8 publications

Universally Exhaustive Generation of Molecular Structures and Prediction of Their Electronic States Using Machine Learning for N‐type Organic Transistor Materials

Universally Exhaustive Generation of Molecular Structures and Prediction of Their Electronic States Using Machine Learning for N‐type Organic Transistor Materials

Doped Lateral Organic Photovoltaic Cells

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