Structure-Property Relationships: Asymmetric Alkylphenyl-Substituted Anthracene Molecules for Use in Small-Molecule Solar Cells
- Authors
- Kim, Yu Jin; Ahn, Eun Soo; Jang, Sang Hun; An, Tae Kyu; Kwon, Soon-Ki; Chung, Dae Sung; Kim, Yun-Hi; Park, Chan Eon
- Issue Date
- May-2015
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- anthracenes; density functional theory; solar cells; structure-property relationships; substituent effects
- Citation
- CHEMSUSCHEM, v.8, no.9, pp 1548 - 1556
- Pages
- 9
- Journal Title
- CHEMSUSCHEM
- Volume
- 8
- Number
- 9
- Start Page
- 1548
- End Page
- 1556
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/64579
- DOI
- 10.1002/cssc.201402994
- ISSN
- 1864-5631
1864-564X
- Abstract
- Two asymmetric anthracene-based organic molecules, NDHPEA and TNDHPEA, were prepared without or with a thiophene spacer between the anthracene and naphthalene units. These asymmetric oligomers displayed different degrees of coplanarity, as evidenced by differences in the dihedral angles calculated by using DFT. Differential scanning calorimetry and XRD studies were used to probe the crystallization characteristics and molecular packing structures in the active layers. The coplanarity of the molecules in the asymmetric structure significantly affected the crystallization behavior and the formation of crystalline domains in the solid state. The small-molecule crystalline properties were correlated with the device physics by determining the J-V characteristics and hole mobilities of the devices.
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Collections - College of Engineering > School of Chemical Engineering and Material Science > 1. Journal Articles
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