Development of near-IR responsible photoelectric systems using lithium encapsulated fullerene supramolecules

2016 Fiscal Year Final Research Report

• Project/Area Number: 26288037
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Functional solid state chemistry
• Research Institution: Osaka University
• Principal Investigator: OHKUBIO KEI 大阪大学, 未来戦略機構, 招へい教授 (00379140)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 色素増感型太陽電池 / フラーレン / 超分子 / 電荷分離 / 電子移動 / 光反応 / 人工光合成 / 高速レーザー分光

Outline of Final Research Achievements

Lithium-ion-encapsulated fullerene (Li+@C60) ccould form strong supramolecular binding with various anionic electron donors via electrostatic interactions. Li+@C60 can also form strong supramolecular π-complexes with various electron donors such as cyclic porphyrin dimers, corannulene, and crown-ether-fused monopyrrolo-tetrathiafulvalenes. Photoinduced electron-transfer from electron donors to Li+@C60 afforded long-lived charge-separated states of supramolecular complexes between electron donors and Li+@C60. A photoelectrochemical solar cell composed of supramolecular nanoclusters of Li+@C60 and zinc sulfonated meso-tetraphenylporphyrin exhibits significant enhancement in the photoelectrochemical performance as compared with the reference system containing only a single component.

Free Research Field

電子移動化学