Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 29, Pages 12190-12197Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja3039695
Keywords
-
Categories
Funding
- Ministry of Education, Culture, Sports, Science, and Technology of Japan [20108001, 20245006, 2200009, 2006008, 20038007]
- JST
- MICINN
- Ministerio de Ciencia e Innovation (MICINN) of Spain [CTQ2008-00795/BQU, CSD2007-00010]
- CAM [MADRISOLAR-2, S2009/PPQ-1533]
- Deutsche Forschundemienschaft [Gu 517/14-1]
- Grants-in-Aid for Scientific Research [20108001, 20108002] Funding Source: KAKEN
Ask authors/readers for more resources
The potential of Lu3N@C-80 and its analogues as electron acceptors in the areas of photovoltaics and artificial photosynthesis is tremendous. To this date, their electron-donating properties have never been explored, despite the facile oxidations that they reveal when compared to those of C. Herein, we report on the synthesis and physicochemical studies of a covalently linked Lu3N@C-80-perylenebisimide (PDI) conjugate, in which PDI acts as the light harvester and the electron acceptor. Most important is the unambiguous evidence-in terms of spectroscopy and kinetics-that corroborates a photoinduced electron transfer evolving from the ground state of Lu3N@C-80 to the singlet excited state of PDI. In stark contrast, the photoreactivity of a C-60-PDI conjugate is exclusively governed by a cascade of energy-transfer processes. Also, the electron-donating property of the Lu3N@C-80 moiety was confirmed through constructing and testing a bilayer heterojunction solar cell device with a PDI and Lu3N@C-80 derivative as electron acceptor and electron donor, respectively. In particular, a positive phcitovoltage of 046 V and a negative short circuit current density of 0.38 mA are observed with PDI/Ca as anode and ITO/Lu3N@C-80 as cathode. Although the devices were not optimized, the sign of the V-OC and the flow direction of J(SC) Clearly underline the unique oxidative role of Lu3N@C-80 within electron donor-acceptor conjugates toward the construction of novel optoelectronic devices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available