研究目的
Investigating the effect of fused triphenylamine core in star-shaped donor-π-acceptor molecules on their physicochemical properties and performance in bulk heterojunction organic solar cells.
研究成果
The novel star-shaped donor-acceptor molecule with the fused triphenylamine core (I) exhibits higher crystallinity, solubility, and thermal stability compared to its analog with a pristine triphenylamine core (II). Organic solar cells based on I showed significantly higher power conversion efficiency, hole mobility, and external quantum efficiency than those based on II. This demonstrates the potential of the fused triphenylamine core in designing highly soluble and crystalline materials for organic optoelectronic devices.
研究不足
The study focuses on the comparison between two specific molecules (I and II) and their performance in organic solar cells. The potential for optimization in the synthesis process and the exploration of other fused cores are not fully addressed.
1：Experimental Design and Method Selection:
Synthesis of a novel star-shaped donor-acceptor molecule with an acridine-based core and comparison with a structural analog.
2：Sample Selection and Data Sources:
Molecules I and II were synthesized and characterized.
3：List of Experimental Equipment and Materials:
Tetrakis(triphenylphosphine)palladium (0) Pd(PPh3)4, malononitrile, THF, toluene, hexane, pyridine, etc.
4：Experimental Procedures and Operational Workflow:
Synthesis, purification, and characterization of molecules I and II, fabrication of organic solar cells, and measurement of their photovoltaic properties.
5：Data Analysis Methods:
UV-vis absorption spectra, cyclic voltammetry, thermogravimetric analysis, differential scanning calorimetry, atomic force microscopy, and space-charge limited current technique.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
laser-driven light source
LDLS EQ-99X
Energetiq
Used for measuring external quantum efficiency spectra.
-
power sensor
S120UV
Thorlabs
Used with the laser-driven light source for measuring external quantum efficiency spectra.
-
Bruker WP-250 SY spectrometer
WP-250 SY
Bruker
Used for recording 1Н NMR spectra.
-
Bruker Avance II 300 spectrometer
Avance II 300
Bruker
Used for recording 13C NMR spectra.
-
absorption spectrometer
UV 2501 PC
Shimadzu
Used for recording absorption profiles.
-
SourceMeter 2400
2400
Keithley
Used for measuring J-V characteristics of OSC.
-
Tetrakis(triphenylphosphine)palladium (0)
Pd(PPh3)4
Sigma–Aldrich Co.
Catalyst in the synthesis of the star-shaped donor-acceptor molecule.
-
malononitrile
Sigma–Aldrich Co.
Used in the synthesis of the target molecule.
-
THF
Solvent used in the synthesis and purification processes.
-
toluene
Solvent used in the synthesis process.
-
hexane
Solvent used in the purification process.
-
pyridine
Used in the condensation reaction to synthesize the target molecule.
-
CHN automatic analyzer
CE 1106
Used for elemental analysis of C, N and H elements.
-
microwave
Discovery
CEM corporation
Used for Kn?venagel condensation.
-
Mettler Toledo TG50 system
TG50
Mettler Toledo
Used for thermogravimetric analysis.
-
Mettler Toledo DSC30 system
DSC30
Mettler Toledo
Used for differential scanning calorimetry scans.
-
NTEGRA SPECTRA
NTEGRA SPECTRA
NT-MDT
Atomic force microscope used for studying the surface morphology of the active layer.
-
XSC11
XSC11
MikroMasch
Probes used with the atomic force microscope.
-
solar simulator
67005
Newport
Used for irradiating OSC samples during J-V measurements.
-
monochromator
CS130-USB-3-MC
Newport
Used with the laser-driven light source for measuring external quantum efficiency spectra.
-
登录查看剩余18件设备及参数对照表
查看全部
