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organic semiconductors

Infrared spectroscopy depth profiling of organic thin films

J. Yu et al. | Mater. Horiz. 8 (2021)

Organic thin films are widely used in organic electronics and coatings. Such films often feature film-depth dependent variations of composition and optoelectronic properties. State-of-the-art depth profiling methods such as mass spectroscopy and photoelectron spectroscopy rely on non-intrinsic...

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perovskites

Mechanism and timescales of reversible p-doping of methylammonium lead triiodide by oxygen

D. Shin et al. | Adv. Mater. 33 (2021)

Understanding and controlling the energy level alignment at interfaces with metal halide perovskites (MHPs) is essential for realizing the full potential of these materials for use in optoelectronic devices. To date, however, the basic electronic properties of MHPs are still under debate....

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2D semiconductors

Temperature-dependent electronic ground state charge transfer in van der Waals heterostructures

S. Park et al. | Adv. Mater. 33 (2021)

Electronic charge rearrangement between components of a heterostructure is the fundamental principle to reach the electronic ground state. It is acknowledged that the density of state distribution of the components governs the amount of charge transfer, but a notable dependence on temperature is...

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