Dergi makalesi Açık Erişim
Sirin, Pinar Seyitdanlioglu; Kahya, Naime Didem; Unaleroglu, Canan
{ "DOI": "10.1002/slct.202103353", "abstract": "The design of multi-purpose semiconductor materials has become a major challenge in organic electronics. In this work, we designed DAD type 30 small molecules with thiophene as donor and phthalimide/benzimidazole/benzotriazole as acceptor groups and investigated their structural, electronic and optical properties via computational methods. E-HOMO, E-LUMO of the designed molecules were calculated with DFT and TD-DFT methods at HSEH1PBE functional with the 6-31+G** basis set. HOMO-LUMO gaps of the designed molecules were ranged between 2.25-3.41 eV. When an amino group is used as a substituent, the lowest HOMO-LUMO gaps (2.25-2.95 eV) were obtained with increasing HOMO level. Reorganization energies were calculated for hole or electron transport properties of the representative molecules. Benzotriazole based DAD compound, which is N-Phenyl bearing p-formyl substituted, has the smallest hole reorganization energy as a promising p-type organic semiconductor. High open-circuit voltages were obtained for aldehyde, carboxylic acid and ester substituted structures. This study presents a valuable insight to the experimental studies in designing new photovoltaics and electrochemical biosensors.", "author": [ { "family": "Sirin", "given": " Pinar Seyitdanlioglu" }, { "family": "Kahya", "given": " Naime Didem" }, { "family": "Unaleroglu", "given": " Canan" } ], "container_title": "CHEMISTRYSELECT", "id": "234690", "issue": "40", "issued": { "date-parts": [ [ 2021, 1, 1 ] ] }, "page": "10793-10801", "title": "Designing of DAD Type Small Semiconductor Molecules andInvestigation of Substituent Effect on Their Molecular, Electronic and Optical Properties: A DFT Study**", "type": "article-journal", "volume": "6" }
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