TY - JOUR
T1 - Large-area color controllable remote carbon white-light light-emitting diodes
AU - Zhang, Wenfei
AU - Yu, Siu Fung
AU - Fei, Linfeng
AU - Jin, Limin
AU - Pan, Shusheng
AU - Lin, Peng
PY - 2015/1/1
Y1 - 2015/1/1
N2 - We disperse carbon nanodots (C-dots), which can be achieved by decomposing organic acid in silane coupling agent, in epoxy oligomer to realize large-area C-dots film on any transparent substrate. Due to the similarity in solubility parameters between C-dots and epoxy resin, aggregation of C-dots in epoxy resin is suppressed. It is found that the C-dots films can support high conversion efficiency (>60%) white-light emission under 460 nm illumination. In addition, the corresponding correlated color temperature can be varied between 2500 and 10,000 K by controlling the thickness of the C-dots film. We also verify that the absolute performance of C-dots film is compatible with that of the commercial available phosphor film.
AB - We disperse carbon nanodots (C-dots), which can be achieved by decomposing organic acid in silane coupling agent, in epoxy oligomer to realize large-area C-dots film on any transparent substrate. Due to the similarity in solubility parameters between C-dots and epoxy resin, aggregation of C-dots in epoxy resin is suppressed. It is found that the C-dots films can support high conversion efficiency (>60%) white-light emission under 460 nm illumination. In addition, the corresponding correlated color temperature can be varied between 2500 and 10,000 K by controlling the thickness of the C-dots film. We also verify that the absolute performance of C-dots film is compatible with that of the commercial available phosphor film.
UR - http://www.scopus.com/inward/record.url?scp=84921734217&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2014.12.107
DO - 10.1016/j.carbon.2014.12.107
M3 - Journal article
VL - 85
SP - 344
EP - 350
JO - Carbon
JF - Carbon
SN - 0008-6223
ER -