UV-Vis absorption spectra for CH3NH3PbI3 and PbI2 can be seen in Figures 18 and 19, respectively. Characteristic and non- overlapping optical absorption onset allows HP material to be...

Apr 14, 2025 · Fabricating self-driven UV detection photodetectors based on PbI2 materials remains a challenging issue due to chemical disorder and Fermi-level pinning. Here, we propose a self-driven PbI2-based ultraviolet photodetector, in which metal electrodes and graphene are prefabricated and physically laminated onto PbI2. The self-driven photodetector demonstrates an ultrafast response time (rise: 3. ...

2D lead iodide (PbI 2) is attracting great interest due to its great potential in the application of UV photodetectors. In this work, a facile solution-based method is developed to synthesize ultraflat PbI 2 nanoflakes for high-performance UV photodetectors.

The pure PbI2 exhibits a stable and reversible photodetector performance with responsivity of 0.060 AW-1, detectivity of 6.38 × 10¹⁰ Jones, EQE of ∼14% and response time of 224 ms.

Dec 30, 2017 · Herein, a novel facile space confined physical vapor deposition (PVD) process is provided to synthesize uniform triangle PbI2 flakes with high quality.

Mar 9, 2021 · Herein, a novel strategy is proposed for improving the photostability of PbI 2 at different excitation wavelengths, including 320, 405, and 532 nm, via constructing type-I heterostructure with ZnO with high thermal conductivity.

Feb 15, 2023 · 2D PbI 2 nanosheets are formed and vertically distributed at the grain boundaries of perovskite films. The devices show maximum efficiency over 21% and excellent ambient stability.

Jan 1, 2022 · In this study, we studied the controlled in-situ PbI 2 formation during the thin film evolution, and its effect on thin film properties, as well as their passivation effects on the photovoltaic device performance.

We report the first synthesis of colloidal lead iodide PbI2 nanoparticles by pulsed laser ablation in methanol. Structural and optical properties of PbI2 nanoparticles were investigated.

Jun 25, 2019 · 2D lead iodide (PbI 2) is attracting great interest due to its great potential in the application of UV photodetectors. In this work, a facile solution‐based method is developed to synthesize ultraflat PbI 2 nanoflakes for high‐performance UV photodetectors.