Physics – Condensed Matter – Materials Science
Scientific paper
2009-09-13
Physics
Condensed Matter
Materials Science
Accepted for publication in Adv. Mater
Scientific paper
Fluorescent organic compounds are of significant importance to the development of low-cost opto-electronic devices. Blue fluorescence from aromatic or olefinic molecules and their derivatives is particularly important for display and lighting applications. Thin film deposition of low-molecular-weight fluorescent organic compounds typically requires costly vacuum evaporation systems. On the other hand, solution-processable polymeric counterparts generally luminesce at longer wavelengths due to larger delocalization in the chain. Blue light emission from solution-processed materials is therefore of unique technological significance. Here we report near-UV to blue photoluminescence (PL) from solution-processed graphene oxide (GO). The characteristics of the PL and its dependence on the reduction of GO indicates that it originates from the recombination of electron-hole (e-h) pairs localized within small sp2 carbon clusters embedded within an sp3 matrix. These results suggest that a sheet of graphene provides a parent structure on which fluorescent components can be chemically engineered without losing the macroscopic structural integrity. Our findings offer a unique route towards solution-processable opto-electronics devices with graphene.
Chen Chun-Wei
Chen Hsin-An
Chen I-Sheng
Chhowalla Manish
Eda Goki
No associations
LandOfFree
Blue photoluminescence from chemically derived graphene oxide does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Blue photoluminescence from chemically derived graphene oxide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blue photoluminescence from chemically derived graphene oxide will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-563661