TY  - JOUR
A1  - Xu, Jingsan
A1  - Shalom, Menny
A1  - Piersimoni, Fortunato
A1  - Antonietti, Markus
A1  - Neher, Dieter
A1  - Brenner, Thomas J. K.
T1  - Color-Tunable Photoluminescence and NIR Electroluminescence in Carbon Nitride Thin Films and Light-Emitting Diodes
JF  - Advanced optical materials
Y1  - 2015
U6  - https://doi.org/10.1002/adom.201500019
SN  - 2195-1071
VL  - 3
IS  - 7
SP  - 913
EP  - 917
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Jordan, Thomas
A1  - Fechler, Nina
A1  - Xu, Jingsan
A1  - Brenner, Thomas J. K.
A1  - Antonietti, Markus
A1  - Shalom, Menny
T1  - "Caffeine Doping" of Carbon/Nitrogen-Based Organic Catalysts: Caffeine as a Supramolecular Edge Modifier for the Synthesis of Photoactive Carbon Nitride Tubes
JF  - ChemCatChem : heterogeneous & homogeneous & bio- & nano-catalysis ; a journal of ChemPubSoc Europe
N2  - An alternative method for the structure tuning of carbon nitride materials by using a supramolecular approach in combination with caffeine as lining-agent is described. The self-assembly of the precursor complex consisting of melamine and cyanuric acid can be controlled by this doping molecule in terms of morphology, electronic, and photophysical properties. Caffeine is proposed to insert as an edge-molecule eventually leading to hollow tube-like carbon nitride structures with improved efficiency of charge formation. Compared to the bulk carbon nitride, the caffeine-doped analogue possesses a higher photocatalytic activity for the degradation of rhodamineB dye. Furthermore, this approach is also shown to be suitable for the modification of carbon nitride electrodes.
KW  - caffeine
KW  - carbon nitride
KW  - films
KW  - photocatalysis
KW  - supramolecular chemistry
Y1  - 2015
U6  - https://doi.org/10.1002/cctc.201500343
SN  - 1867-3880
SN  - 1867-3899
VL  - 7
IS  - 18
SP  - 2826
EP  - 2830
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Xu, Jingsan
A1  - Cao, Shaowen
A1  - Brenner, Thomas J. K.
A1  - Yang, Xiaofei
A1  - Yu, Jiaguo
A1  - Antonietti, Markus
A1  - Shalom, Menny
T1  - Supramolecular Chemistry in Molten Sulfur: Preorganization Effects Leading to Marked Enhancement of Carbon Nitride Photoelectrochemistry
JF  - Advanced functional materials
N2  - Here, a new method for enhancing the photoelectrochemical properties of carbon nitride thin films by in situ supramolecular-driven preorganization of phenyl-contained monomers in molten sulfur is reported. A detailed analysis of the chemical and photophysical properties suggests that the molten sulfur can texture the growth and induce more effective integration of phenyl groups into the carbon nitride electrodes, resulting in extended light absorption alongside with improved conductivity and better charge transfer. Furthermore, photophysical measurements indicate the formation of sub-bands in the optical bandgap which is beneficial for exciton splitting. Moreover, the new bands can mediate hole transfer to the electrolyte, thus improving the photooxidation activity. The utilization of high temperature solvent as the polymerization medium opens new opportunities for the significant improvement of carbon nitride films toward an efficient photoactive material for various applications.
KW  - carbon nitride thin film
KW  - charge transfer
KW  - molten sulfur
KW  - photoelectrochemistry
Y1  - 2015
U6  - https://doi.org/10.1002/adfm.201502843
SN  - 1616-301X
SN  - 1616-3028
VL  - 25
IS  - 39
SP  - 6265
EP  - 6271
PB  - Wiley-VCH
CY  - Weinheim
ER  -