Phd Student Position

Vor 6 Tagen

Berlin, Deutschland Leibniz-Institut für Kristallzüchtung Vollzeit

We are offering one

**PhD Student Position (M/F/d)**

for the Marie Skłodowska-Curie Doctoral Network HINA

**Hybrid INtegration of Alkaline niobate - tantalate films**
**for advanced photonic and piezoelectric devices**

The HINA project proposes to consider the hybrid integration of alkaline niobate-tantalate thin films (materials with the highest known experimentally measured electro-optic, nonlinear, piezoelectric, elasto-optic coefficients) in photonic and acoustic devices for advanced semiconductor photonics platforms. HINA links world-leading research groups at Academia and Industry to give a combined, integrated approach of synthesis/fabrication, characterization, modeling/theory linked to concepts for materials integration in devices and systems.
The MSCA Doctoral Network HINA offers 18 PhD positions.

The key responsibilities of the PhD student for the subproject DC 5 will include:
Epitaxial growth of KNN films by CVD with different surface orientations for SAW and electro-optical devices

(i) Optimization of growth conditions for epitaxially strained, stoichiometric (K,Na)(Nb,Ta)O3 films by MOVPE using commercial or designed MO precursors,

(ii) Influence of lattice strain, Na/K ratio, Nb/Ta and off-stoichiometry (alkaline deficiency or niobium deficiency) on piezoelectric properties and domain formation,

(iii) Variation of film direction by using differently oriented oxide substrates and textured electrodes,

(iv) Revealing structure-properties relationship with focus on K2 (SAW, BAW) and electro-optic properties.

**Eligibility**

**What we offer**

**Have we sparked your interest?**
- CV (2 pages).
- Diploma (copy) of Master degree or equivalent degree which formally entitle to embark on a doctorate, including annexes with marks/classifications.
- Diploma (copy) of Bachelor degree or equivalent degree including annexes with marks/ classifications.
- Cover letter (1 page).
- Names and contact details of two referees, who agreed to provide recommendation letters.
- List of selected Phd topics in order of preference (see the list of available positions below in additional information).

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