Atomically Dispersed Metal Atoms: Minimizing Interfacial Charge Transport Barrier for Efficient Carbon-Based Perovskite Solar Cells

Nano-Micro Letters, Journal Year: 2025, Volume and Issue: 17(1)

Published: Jan. 31, 2025

Carbon-based perovskite solar cells (C-PSCs) exhibit notable stability and durability. However, the power conversion efficiency (PCE) is significantly hindered by energy level mismatches, which result in interfacial charge transport barriers at electrode-related interfaces. Herein, we report a back electrode that utilizes atomically dispersed metallic cobalt (Co) carbon nanosheets (Co1/CN) to adjust levels. The electrons d-orbitals of Co atoms disrupt electronic symmetry (CN), inducing redistribution density states leads downward shift Fermi reduced barrier. As result, C-PSCs using Co1/CN as electrodes achieve PCE 22.61% with exceptional long-term stability, maintaining 94.4% their initial after 1000 h continuous illumination without encapsulation. This work provides promising universal method regulate for paves way more efficient, stable, scalable technologies toward commercialization.

Language: Английский

Temperature behaviors of transparent solar PV panels under various operating modes: an experimental and numerical study

Renewable Energy, Journal Year: 2025, Volume and Issue: unknown, P. 123279 - 123279

Published: May 1, 2025

Language: Английский

Conducting Polymer‐Based Electrochemically Tunable Filters with Spatiotemporal Spectral Tunability

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

Abstract Optical filters are key components to achieve spatial or temporal modulators for constructing computational miniaturized spectrometers. Conducting polymer‐based electrochemically tunable with spatiotemporal spectral tunability reported, demonstrating the advantages of angle‐independence, diverse modulation, high repeatability, and flexibility. By controlling chemical doping polyaniline solutions films, modulation is achieved in wavelength range 350–1100 nm. To encoding, an filter developed using a three‐electrode vertical device (ITO/PAni/Electrolyte (Ag/AgCl)/PEDOT/ITO), which exhibits continuous spectra repeatability during 100 cycles test. lateral incorporating three different conducting polymers (Cu/Electrolyte (ITO‐PAni+PPy+PEDOT‐OH)/Cu), show gradient extensive diversity. Using device, hyperspectral imaging system 640 × 512 pixel resolution constructed, can distinguish quantum dot emission wavelengths 10 Combining compressed sensing‐based reconstruction algorithm, spectrometer ≈1 nm further theoretically demonstrated. In summary, polymer provides advanced light smart optics.

Language: Английский