1.2 Advances in Functional Nanomaterials Sciences
7
In addition, surface plasmonic effects in metallic nanoheterostructures were summarised by G. Bi and C. Cai from the ZJU City College in Hangzhou, who investigated the tuning effects of localised surface-plasmon resonances on properties of
the nanosystems.
A class of functionalised materials, which has been also attractive for collective
spin excitation and dynamics studies, such as in semiconductor-based spintronic
materials, was highlighted by X. Zhang from the State Key Laboratory of Superlattices and Microstructures, Beijing. The associated mechanisms governing their
magnetisation dynamics were discussed by her for all-optical ultrafast spin excitation and dynamics of typical semiconductor-based spintronic materials.
While the trend goes towards the exploitation of layered (quantum) materials and
functionalised nanocrystals, the material class of perovskites has emerged in the past
decade as a promising candidate for modern optoelectronic devices. U. Lemmer from
the Karlsruhe Institute of Technology outlined how metal–halide perovskites form
a class of printable semiconductors with highly tunable optoelectronic properties,
from which his group has realised efficient solar cells and optically pumped lasers
using ink-jet printing as the deposition method.
1.2.2 Material Engineering and Physics
Given the importance of material engineering and physics for energy-efficient devices
or novel device concepts, several FNMS2018 sessions discussed this subject for
materials such as perovskites, graphene and related materials, as well as other layered
or nano-sized crystals.
Since perovskites showed a considerable application potential, several investigations regarding fundamentals, synthesis and employment of this material class were
presented.
By demonstrating a bright-exciton fine-structure splitting as large as several
hundreds of µeV in single perovskite CsPbI 3 nanocrystals at the National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced
Microstructures, Nanjing University, X. Wang’s report implied that their fundamental studies and practical applications have now stepped into the quantum information
processing regime.
Furthermore, recent steady-state and time-resolved (TR) photoluminescence (PL)
studies on quasi-2D perovskite nanoplatelets, 0D ultrasmall perovskite quantum dots,
and 2D layered perovskites revealed unique and excellent optical properties of excitons in solution-processed low-dimensional lead–halide perovskites, as H. He from
the State Key Laboratory of Silicon Materials and ZJU in Hangzhou highlighted.
This would render solution processing an attractive method with respect to perovskite
structure fabrication.
With the goal of employing perovskite materials in photovoltaic applications, also
high-quality perovskite films were targeted. Such films were demonstrated by blade
coating of lead-acetate-trihydrate sourced precursor solutions under harsh ambient
condition. From that, W. Kong and his co-workers obtained perovskite solar cells
7
In addition, surface plasmonic effects in metallic nanoheterostructures were summarised by G. Bi and C. Cai from the ZJU City College in Hangzhou, who investigated the tuning effects of localised surface-plasmon resonances on properties of
the nanosystems.
A class of functionalised materials, which has been also attractive for collective
spin excitation and dynamics studies, such as in semiconductor-based spintronic
materials, was highlighted by X. Zhang from the State Key Laboratory of Superlattices and Microstructures, Beijing. The associated mechanisms governing their
magnetisation dynamics were discussed by her for all-optical ultrafast spin excitation and dynamics of typical semiconductor-based spintronic materials.
While the trend goes towards the exploitation of layered (quantum) materials and
functionalised nanocrystals, the material class of perovskites has emerged in the past
decade as a promising candidate for modern optoelectronic devices. U. Lemmer from
the Karlsruhe Institute of Technology outlined how metal–halide perovskites form
a class of printable semiconductors with highly tunable optoelectronic properties,
from which his group has realised efficient solar cells and optically pumped lasers
using ink-jet printing as the deposition method.
1.2.2 Material Engineering and Physics
Given the importance of material engineering and physics for energy-efficient devices
or novel device concepts, several FNMS2018 sessions discussed this subject for
materials such as perovskites, graphene and related materials, as well as other layered
or nano-sized crystals.
Since perovskites showed a considerable application potential, several investigations regarding fundamentals, synthesis and employment of this material class were
presented.
By demonstrating a bright-exciton fine-structure splitting as large as several
hundreds of µeV in single perovskite CsPbI 3 nanocrystals at the National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced
Microstructures, Nanjing University, X. Wang’s report implied that their fundamental studies and practical applications have now stepped into the quantum information
processing regime.
Furthermore, recent steady-state and time-resolved (TR) photoluminescence (PL)
studies on quasi-2D perovskite nanoplatelets, 0D ultrasmall perovskite quantum dots,
and 2D layered perovskites revealed unique and excellent optical properties of excitons in solution-processed low-dimensional lead–halide perovskites, as H. He from
the State Key Laboratory of Silicon Materials and ZJU in Hangzhou highlighted.
This would render solution processing an attractive method with respect to perovskite
structure fabrication.
With the goal of employing perovskite materials in photovoltaic applications, also
high-quality perovskite films were targeted. Such films were demonstrated by blade
coating of lead-acetate-trihydrate sourced precursor solutions under harsh ambient
condition. From that, W. Kong and his co-workers obtained perovskite solar cells