Zhores Alferov, a Nobel Prize-winning Russian physicist who developed a semiconductor that helped usher in the modern information revolution, died March 1 at a hospital in St. Petersburg. He was 88.

His work served as an integral part of such wide-ranging technologies as bar-code readers, cellphones, light-emitting diodes and fiber-optic cables.

A representative of St. Petersburg Academic University, long led by Alferov, told the Russian news agency RIA Novosti the cause was a heart ailment.

Alferov was a pioneer in the development of semiconductor heterostructures, key parts of laser diodes and fast, tiny transistors. He also served as a Communist Party member in the Russian parliament, where he sought to safeguard scientific research.