TY - JOUR
T1 - The crucial role of intermolecular π-π Interactions in A-D-A-type electron acceptors and their effective modulation
AU - Gao, Bowei
AU - Yao, Huifeng
AU - Jang, Bomee
AU - Zhu, Jie
AU - Yu, Runnan
AU - Cui, Yong
AU - Wang, Fenghao
AU - Hou, Junxian
AU - Woo, Han Young
AU - Hou, Jianhui
PY - 2018/1/1
Y1 - 2018/1/1
N2 - Here, the crucial role of intermolecular π-π interactions in A-D-A-type acceptors is examined and a simple yet effective modulation method is presented. By side chain manipulation, two small molecule acceptors, IDT-C6 and IDT-PhC6, are designed and synthesized with different crystalline morphologies. Since n-hexyl side chains have less steric hindrance than hexylphenyl side chains, IDT-C6 exhibits enhanced intermolecular π-π interactions relative to IDT-PhC6. Benefiting from the improved charge transport properties of the IDT-C6-based device, a high PCE of 12.5% is recorded, whereas those of the IDT-PhC6-based device delivers a moderate PCE of just 5.6%.
AB - Here, the crucial role of intermolecular π-π interactions in A-D-A-type acceptors is examined and a simple yet effective modulation method is presented. By side chain manipulation, two small molecule acceptors, IDT-C6 and IDT-PhC6, are designed and synthesized with different crystalline morphologies. Since n-hexyl side chains have less steric hindrance than hexylphenyl side chains, IDT-C6 exhibits enhanced intermolecular π-π interactions relative to IDT-PhC6. Benefiting from the improved charge transport properties of the IDT-C6-based device, a high PCE of 12.5% is recorded, whereas those of the IDT-PhC6-based device delivers a moderate PCE of just 5.6%.
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U2 - 10.1039/c7ta10461h
DO - 10.1039/c7ta10461h
M3 - Article
AN - SCOPUS:85041958598
SN - 2050-7488
VL - 6
SP - 2664
EP - 2670
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 6
ER -
