Solid-state spectroscopy and crystallography

Abstract Improving the long-term stability of perovskite solar cells is critical to the deployment of this technology. Despite the great emphasis laid on stability-related investigations, publications lack consistency in experimental procedures and parameters reported. It is therefore challenging to reproduce and comp…

Metal-halide perovskites have rapidly emerged as one of the most promising materials of the 21st century, with many exciting properties and great potential for a broad range of applications, from photovoltaics to optoelectronics and photocatalysis. The ease with which metal-halide perovskites can be synthesized in the…

• HİLMİ VOLKAN DEMİR

Lead-halide perovskites have transcended photovoltaics. Perovskite light-emitting diodes (PeLEDs) emerge as a new field to leverage on these fascinating semiconductors. Here, we report the first use of completely inorganic CsPbBr3 thin films for enhanced light emission through controlled modulation of the trap density…

• HİLMİ VOLKAN DEMİR

Abstract As a result of their attractive optoelectronic properties, metal halide APbI 3 perovskites employing formamidinium (FA + ) as the A cation are the focus of research. The superior chemical and thermal stability of FA + cations makes α‐FAPbI 3 more suitable for solar‐cell applications than methylammonium lead i…

• SEÇKİN AKIN

Methylammonium lead iodide (CH3NH3PbI3) based solar cells have shown impressive power conversion efficiencies of above 20%. However, the microscopic mechanism of the high photovoltaic performance is yet to be fully understood. Particularly, the dynamics of CH3NH3(+) cations and their impact on relevant processes such…

• BAHAR İPEK TORUN

Abstract Formamidinium lead triiodide (FAPbI3)‐based perovskite materials are of interest for photovoltaics in view of their close‐to‐ideal bandgap, allowing absorption of photons over a broad solar spectrum. However, FAPbI3‐based materials suffer from a notorious phase transition from the photoactive black phase (α‐F…

• SAVAŞ SÖNMEZOĞLU
• SEÇKİN AKIN

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• SEÇKİN AKIN

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• TEOMAN ÖZTÜRK

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• ENGİN DELİGÖZ
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