Berlin 2018 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 13: Poster Session I

HL 13.32: Poster

Montag, 12. März 2018, 17:30–19:30, Poster B

Ab initio study of binary pnictides and halides for the identification of transparent p-type conducting materials — •Hendrik Wiebeler, Kormath Raghupathy Ramya, Hossein Mirhosseini, and Thomas D. Kühne — Department of Chemistry, University Paderborn, Germany

Transparent conducting materials (TCMs) have received attention owing to their wide range of applications from solar cells to transparent electronics[1]. Transparent conducting oxides (TCOs) have been predominantly commercialized as n-type TCMs. In contrast to this, the performance of p-type TCOs is not satisfactory, due to the nature of their valence bands. Hence, in this work, ab initio calculations were employed to identify high-performance p-type semiconductors[2]. Materials having wide band gaps (E_g) and low hole effective masses (m_h) are promising p-type TCMs. Therefore, non-toxic and non-expensive binary semiconductors with E_g > 1.7 eV and m_h < 1 were considered. The role of intrinsic and extrinsic point defects was explored to determine the p-type performance.

[1] K. Zhang et al., J. Phys.: Condens. Matter 28 383002 (2016)

[2] D. Broberg et al., arXiv:1611.07481v1 (2016)