Organic and metallorganic synthesis

Gloria Zanotti -

Roma - Monterotondo

The laboratory is fully equipped to carry out chemical synthesis under standard conditions and in controlled environment using vacuum lines and inert gases; it also has equipment for the separation and purification of the synthetic targets by extractive, thermal and chromatographic techniques according to their chemical nature. Furthermore, several solution- and vacuum-based thin-film deposition techniques are available. The main skills of the laboratory concern (1) Organic, inorganic and metallorganic synthesis; (2) development and use of sustainable synthetic methods with low environmental impact; (3) deposition of thin films either by solution or evaporation techniques.

TECHNICAL SPECIFICATIONS

ordinary and special glassware for synthesis in controlled environment
fume hoods equipped with vacuum lines and inert gases
vacuum heating dryers
vacuum tube furnace up to 700°C
equipment for the separation and purification of samples
centrifuge
optical microscope
laminar flow hood
bi-distiller

AVAILABLE TECHNIQUES

Design, synthesis and purification of highly conjugated organic and metallorganic molecules with optimized optical and electronic properties depending on the target application (e.g. gas sensing, organic electronics, optoelectronics) via scalable and environmental friendly synthetic routes.
Bulk synthesis of hybrid and inorganic perovskites of different composition for the study of fundamental properties.

Case Studies

Synthesis of functionalized zinc phthalocyanines as hole transporting materials for organic electronics

This study describes the synthesis and characterization of two zinc phthalocyanines functionalized with benzothienobenzothiophene derivatives as new potential p-type semiconductors for electronic and optoelectronic technologies. When implemented in perovskite solar cells, both the molecules showed an interesting hole transport activity even in absence of chemical doping.

Si veda: G. Zanotti, N. Angelini, G. Mattioli, A. M. Paoletti, G. Pennesi et al. Chempluschem 2020,.85, 1-12

"Selected for cover feature"

TECHNICAL SPECIFICATIONS

Spincoater Convac 1001
- number of rotations programmable up to 9000 rpm.
Langmuir-Blodgett KSV 2000 system
- deposition rate 0.1 to 85mm/min
- unlimited deposition cycles
- dynamic range from 0 to 250 mN/m
- effective area 675 cm²

AVAILABLE TECHNIQUES

DEPOSITION OF THIN SOLUTION FILMS

Spincoater Convac 1001
Langmuir-Blodgett KSV 2000 system

SAMPLES

Spincoater Convac 1001

substrates from 5x5² up to 4" wafers

Langmuir-Blodgett KSV 2000 system

Maximum substrate size 100x100mm
effective area 675 cm²

USED FOR

Deposition of thin films (mono/multilayers) on several substrates for morphological, optical and electric conductivity studies. Applications in photovoltaics, sensors and electronic organics.

Preparation of thin films of (FePc)₂C obtained by spin coating or Langmuir Blodgett for sensing applications and studies on their interaction with NO₂

Nitrogen oxides are among the environmental pollutants to be kept strongly under control and metallophthalocyanines (Pc) have proven over the years to be particularly suitable for their detection when implemented in opportune sensors. The study of μ-carbide bridged iron phthalocyanine films deposited by spin coating and Langmuir-Blodgett allowed to compare their behavior in the presence of NO₂ in terms of gas-molecule chemical interaction and variation in the electrical conductivity of the films. The similarities and differences between the two systems have been rationalized taking into account the different structural and morphological characteristics of the films induced by the two deposition techniques.

Si veda: A. Capobianchi, A. M. Paoletti, G. Rossi, G. Zanotti, G. Pennesi, Sensors and actuators B 142 (2009) 159-165

Organic and metallorganic synthesis