Photocurrent conversion capability of a 2D WS₂-polyvinyl alcohol matrix and its DFT-based charge carrier dynamics analysis

Abstract

In the present research article, we have studied the photodetection mechanism of WS2 nanosheets embedded in a polyvinyl alcohol matrix.

Advancements in transition metal dichalcogenides (TMDCs) for self-powered photodetectors: challenges, properties, and functionalization strategies

“…76,77 All things considered, mechanical flexibility is an essential characteristic that raises the robustness and potential uses of photodetectors that run on their own energy. 2D TMDCs are known for their mechanical flexibility, 78 or their capacity to bend and deform without breaking. 79 Weak van der Waals interactions between layers of the material are to blame for this characteristic.…”

Photomultiplicative and High External Quantum Efficient Energy Conversion Device for Paper Electronics

“…Because of its lower ionization potential, polyaniline can catch photogenerated holes, whereas Bi 2 S 3 NRs can collect photogenerated electrons because of their greater electron affinity. Polyaniline is an effective hole transport channel in these metallopolymeric hybrid materials, whereas inorganic Bi 2 S 3 NR is an effective electron transport channel . The rise and decay of the signal were fitted exponentially, yielding response and recovery times of 0.35 and 1.21 s, respectively.…”

“…Polyaniline is an effective hole transport channel in these metallopolymeric hybrid materials, whereas inorganic Bi 2 S 3 NR is an effective electron transport channel. 57 The rise and decay of the signal were fitted exponentially, yielding response and recovery times of 0.35 and 1.21 s, respectively. The polyaniline−Bi 2 S 3 NRs interface, therefore, exerts a significant influence on the suppression of photoinduced charge carrier recombination.…”

Applications of multifunctional triboelectric nanogenerator (TENG) devices: materials and prospects

“…The energy from ambient light can also be harvested by TENG devices, allowing for self-powered operation and simultaneous light metering. 76 The choice of the right materials is essential for effective light detection and electrical output when employing TENGs as photodetectors. 77 A common triboelectric substance is polydimethylsiloxane (PDMS), which has great mechanical flexibility and durability.…”