Third Party Funds Group - Overall project
Acronym: SFB 1719
Start date : 01.10.2025
End date : 30.06.2029
ChemPrint reinvents semiconductors research. This CRC shall inaugurate
the patterned growth of functional inorganic semiconductors from
solution with atomic precision using molecular chemical control. The
mild processing conditions are inherently energy-efficient and the
additive approach materials-efficient, in stark contrast to the
characteristics of traditional semiconductor manu-fac¬tu¬ring. According
to our tenet, the ultimate degree of control achieved routinely in
classical molecular chemistry can be advantageously transferred to
interfacial reactions designed to grow semi-con¬ductor films with atomic
precision. To this aim, we will tailor molecular precursors, reaction
envi¬ron-ments, depo¬sition procedures, and substrates in order to
precision-engineer the reaction mechanisms, the elementary kinetics, the
reversibility of individual steps, the interfacial energies, and the
mobility of adspecies. Controlling these factors in mild conditions,
potentially even at room temperature, shall achieve the highest possible
degree of accuracy in positioning atoms or ions into regular
structures. This strategy will then enable us to create original
patterns and heterostructures along horizontal and vertical dimensions.
We will aim for epitaxial material quality in various guises and
corresponding functional quality, targeting semiconductors with either
defect correction ability or intrinsic defect tolerance. The first
funding period will establish quantitative design criteria for these
currently imperfectly defined concepts. Accordingly, we will during the
first four years gather data on three material families which cover a
range of dimensionalities and chemical bonding types: heavier main group
V (group 15) chalcogenides, halide perovskites, and transition metal
dichalcogenides. The general insight gained will enable the consortium
to choose the material focus for subsequent funding periods. The
individual research projects contributing to the consortium will be
organized in four research areas: Area C, Surface chemistry and
reactivity; Area S, Structure and electronic properties; Area F,
Functional properties and applications; Area M, Modeling and simulation.
On a strategic level, the fundamental insight into low-temperature
molecular reaction mechanisms at interfaces gained in ChemPrint will
open up a new avenue in semiconductor processing. Suitable functional
materials and semiconductor devices will be rendered accessible by
approaches requiring low investments. Innovation by small economic
actors will be possible again in information technology. This will
reverse the economic trend in this sector, allowing it to revert to a
more decentralized, more agile and nimble state, and potentially putting
Germany at the spearhead of a flexible and robust semi¬conductor
manufacturing industry.