Here's a breakdown:
* Louis de Broglie (1924): Proposed the revolutionary idea that all matter exhibits wave-like properties, extending the concept of wave-particle duality beyond light. This was a theoretical breakthrough based on Einstein's work on light.
* Albert Einstein (1905): His photoelectric effect explained that light can act as both a wave and a particle (photons). This laid the foundation for de Broglie's later work.
* Max Planck (1900): His work on blackbody radiation led to the quantization of energy, suggesting that light exists in discrete packets (quanta), a key concept in the particle nature of light.
* Clinton Davisson and Lester Germer (1927): Experimentally confirmed de Broglie's hypothesis by demonstrating the diffraction of electrons, proving that electrons, previously thought of as particles, also exhibit wave-like behavior.
* George Paget Thomson (1927): Independently confirmed the wave nature of electrons through his experiments with electron beams passing through thin metal films.
Therefore, while de Broglie is credited with proposing the wave-particle duality of matter, his idea was built upon the contributions of several physicists and was experimentally verified by Davisson and Germer, and Thomson.
