1.1 A Topical Overview
3
quantum emitters and deterministic nonclassical light sources are expected to utilise
novel material platforms and tailored nanostructures. In this context, SPSs, quantum
computers or sensors and so forth are strongly expected to gain from technological leaps and advances in functional nanomaterials sciences. These forecast benefits
are indeed not only limited to newer quantum technologies, since even quantum
technologies of the first generation still remain candidates for significant improvement based on the employment of novel or functionalised nanomaterials, such as for
particularly efficient or compact light-emitting diodes (LEDs), laser diodes (LDs),
or transistors. Also, QCLs are believed to benefit from advanced material systems,
which can be regarded as located between these two generations.
This wider field of functional nanomaterials sciences is reflected in this work by
different and complementary studies, by both fundamental and applied research. A
summary of related disciplines shall support the discussion of the highlighted examples. Beginning with three separate introductory chapters following this brief general
introduction (this chapter), work on this field is motivated and a brief overview of
the topics of relevance provided. These chapters summarise activities in the fields of
2D materials (Chap. 2), light–matter interactions for photonic applications (Chap. 3),
and work in the wider field of quantum technologies (Chap. 4). With regard to the
characterisation of nanomaterials and quantum structures, optical measurement techniques, which have been employed in the context of the here presented work, are
summarised (Chap. 5). In the following, the effects of quantisation on important properties of optoelectronic systems are highlighted (Chap. 6) and various relevant structuring possibilities explained (Chap. 7). A brief conclusion and outlook completes
the presentation of numerous optical studies addressed within this work (Chap. 8).
The significance of this research direction can be easily anticipated when taking a
look at the successful First Sino–German Symposium on Functional Nano-Materials
Sciences (FNMS2018), which was carried out 2018 in Hangzhou, China. A brief
overview of the prominent subjects in this field discussed within the frame of the
FNMS2018 symposium (cf. Fig. 1.1) shall be given in the following (after the author’s
review article published open access under a CC-BY 4.0 licence [47]). The interested
reader is referred to [47] and references therein for further details. Furthermore,
the essence of this symposium is reflected in the recently formed Sino–German
Cooperation Group on Functional Nano-Materials Sciences (FNMS-COOP), which
has its emphasis on light–matter interactions with 2D systems and hybrids made
of low-dimensional nanomaterials for optoelectronic applications, with groups from
Baoding, Beijing and Hangzhou contributing to its aims on the Chinese side, and
Frankfurt, Giessen and Marburg on the German side.
1.2 Advances in Functional Nanomaterials Sciences
It is well understood that the investigation of novel and functional materials is of great
importance for the optimisation and development of electrical and optical devices (cf.
Fig. 1.2). From such devices one does not only expect higher efficiencies, but access
3
quantum emitters and deterministic nonclassical light sources are expected to utilise
novel material platforms and tailored nanostructures. In this context, SPSs, quantum
computers or sensors and so forth are strongly expected to gain from technological leaps and advances in functional nanomaterials sciences. These forecast benefits
are indeed not only limited to newer quantum technologies, since even quantum
technologies of the first generation still remain candidates for significant improvement based on the employment of novel or functionalised nanomaterials, such as for
particularly efficient or compact light-emitting diodes (LEDs), laser diodes (LDs),
or transistors. Also, QCLs are believed to benefit from advanced material systems,
which can be regarded as located between these two generations.
This wider field of functional nanomaterials sciences is reflected in this work by
different and complementary studies, by both fundamental and applied research. A
summary of related disciplines shall support the discussion of the highlighted examples. Beginning with three separate introductory chapters following this brief general
introduction (this chapter), work on this field is motivated and a brief overview of
the topics of relevance provided. These chapters summarise activities in the fields of
2D materials (Chap. 2), light–matter interactions for photonic applications (Chap. 3),
and work in the wider field of quantum technologies (Chap. 4). With regard to the
characterisation of nanomaterials and quantum structures, optical measurement techniques, which have been employed in the context of the here presented work, are
summarised (Chap. 5). In the following, the effects of quantisation on important properties of optoelectronic systems are highlighted (Chap. 6) and various relevant structuring possibilities explained (Chap. 7). A brief conclusion and outlook completes
the presentation of numerous optical studies addressed within this work (Chap. 8).
The significance of this research direction can be easily anticipated when taking a
look at the successful First Sino–German Symposium on Functional Nano-Materials
Sciences (FNMS2018), which was carried out 2018 in Hangzhou, China. A brief
overview of the prominent subjects in this field discussed within the frame of the
FNMS2018 symposium (cf. Fig. 1.1) shall be given in the following (after the author’s
review article published open access under a CC-BY 4.0 licence [47]). The interested
reader is referred to [47] and references therein for further details. Furthermore,
the essence of this symposium is reflected in the recently formed Sino–German
Cooperation Group on Functional Nano-Materials Sciences (FNMS-COOP), which
has its emphasis on light–matter interactions with 2D systems and hybrids made
of low-dimensional nanomaterials for optoelectronic applications, with groups from
Baoding, Beijing and Hangzhou contributing to its aims on the Chinese side, and
Frankfurt, Giessen and Marburg on the German side.
1.2 Advances in Functional Nanomaterials Sciences
It is well understood that the investigation of novel and functional materials is of great
importance for the optimisation and development of electrical and optical devices (cf.
Fig. 1.2). From such devices one does not only expect higher efficiencies, but access