Albert Einstein receveid the Nobel Prize in Physics 1921 for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect
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@article{einstein1905photoelectriceffect,title={{{\"U}ber einen die Erzeugung und Verwandlung des Lichtes betreffenden heuristischen Gesichtspunkt}},author={Einstein, Albert},journal={Ann. Phys.},volume={322},number={6},pages={132--148},year={1905},doi={10.1002/andp.19053220607},}