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Biodetector for chlordane using doped InP3 monolayers: a density functional theory study.

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Summary
This summary is machine-generated.

Palladium-doped Indium Phosphide (InP3) monolayers show promise as sensitive biodetectors for monitoring the environmental pollutant chlordane. DFT calculations reveal significant band gap changes upon chlordane adsorption, indicating high detection potential.

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Area of Science:

  • Environmental Science
  • Materials Science
  • Computational Chemistry

Background:

  • Chlordane is a persistent environmental pollutant requiring effective monitoring methods.
  • Biodetectors offer a sensitive approach for detecting environmental contaminants like chlordane.

Purpose of the Study:

  • To investigate the potential of silver (Ag), palladium (Pd), and gold (Au) doped Indium Phosphide (InP3) semiconductor monolayers as biodetectors for chlordane.
  • To analyze the adsorption properties and electronic structure changes of chlordane interacting with doped InP3 monolayers using first-principles calculations.

Main Methods:

  • Density Functional Theory (DFT) calculations were employed to model the adsorption of chlordane on Ag, Pd, and Au doped InP3 monolayers.
  • Adsorption energies and electronic band structures were computed to assess the interaction and sensing capabilities.

Main Results:

  • Chlordane exhibited strong adsorption on the doped InP3 monolayers, with calculated adsorption energies of -7.961 eV (Ag), -6.328 eV (Pd), and -7.889 eV (Au).
  • Significant alterations in the band gaps of the doped InP3 monolayers were observed upon chlordane adsorption.
  • Pd-doped InP3 demonstrated the most substantial band gap change, increasing from 0.024 eV to 0.335 eV, indicating high sensitivity.

Conclusions:

  • Pd-doped InP3 monolayers show excellent potential as sensitive and effective biodetectors for environmental chlordane monitoring.
  • The significant electronic response of Pd-doped InP3 to chlordane provides a strong foundation for future experimental research and development of novel environmental sensors.