Prof. Dr. Frank Hergert

You may like to browse my list of published works, which is available through my page at ResearchGate.
For your convenience I have sorted the topics of my articles into these four categories:

For many years I have worked on the atomistic mechanisms involved in the Chalcopyrite Formation Process,
which resulted in many articles described by the following keywords:

• Thin-Film Solar Cells, Chalcopyrite Absorber Formation (Rapid Thermal Processing), CuInSe₂, Cu(In,Ga)Se₂, Cu(In,Ga)(Se,S)₂ 
• X-ray Powder Diffraction, Time-Resolved (in-situ) Measurements, Quantitative Rietveld Analysis, Crystallography 
• Diffusion and Ion-Conductivity, Epitaxial and Topotaxial Growth,  Chemical Formation Reactions in Solid State 
• Sodium Diffusion, Sodium Doping_, Sodium Supply

Creating a pn junction in Chalcopyrite Thin Film Solar Cells requires the so-called Buffer Layer:

• Cadmium Sulfide (CdS) Growth, Chemical Bath Depostion (CBD)
• Cadmium-free Buffer Layers, Indium Sulfide (In₂S₃), Zinc Sulfide (Zn(O,S)), Dry Buffer Layer Deposition

Among the papers you will also find some contributions dealing with the visible spectrum, i.e. with Optics and Optical Metrology:

• Four-Wave-Mixing in Optically Non-linear Bi₁₂TiO₂₀ (BTO) Crystals
• Spatial Thickness Determination of Thin Films on Rough Substrates
• Coloured Thin Film Solar Modules with an Interference Filter

Moreover, I have published a few works in the context of Music:

• Historical background of the Music Score for the Silent Film "Das Blumenwunder" (1926)
• Arrangement of the above mentioned music by E. Künneke for 2 Pianos (2 players) or Organ
• Reducing the Occurence of "Tone Voids" in Unified Pipe Organs