Hideki Shirakawa, the Nobel laureate in Chemistry who revolutionized conductive materials, passes away
The world of science is in mourning following the confirmation of the death of Hideki Shirakawa, the prominent Japanese scientist awarded the Nobel Prize in Chemistry in the year 2000. Shirakawa, who dedicated his life to the research of conductive polymers, died at the age of 90 in the city of Yokohama due to a metastatic liver tumor.
The news was confirmed by the University of Tsukuba, the institution where the researcher served as professor emeritus and left an indelible mark on the training of new generations of scientists. His passing marks the end of a brilliant career that transformed the modern understanding of materials science.
A fortuitous discovery that changed history
The story of Shirakawa is an example of how curiosity can lead to transcendental discoveries. While working at the Tokyo Institute of Technology, an experimental error during the synthesis of polyacetylene allowed him to obtain a thin film with an unusual metallic sheen. Far from ignoring the incident, he decided to thoroughly investigate the phenomenon.
Shirakawa’s discovery challenged the established paradigm, demonstrating that plastics, traditionally considered insulators, could be modified to conduct electricity efficiently.
Subsequently, in collaboration with Alan J. Heeger and Alan G. MacDiarmid at the University of Pennsylvania, Shirakawa perfected this process. In 1977, the team published results demonstrating how certain polymers could acquire conductive properties similar to those of metals, a breakthrough that earned them the Nobel Prize in Chemistry decades later.
A legacy present in our daily technology
The impact of Shirakawa’s work is incalculable in contemporary technology. By developing materials that are lighter, more flexible, and more economical than traditional metals, he opened the door to innovations that we use daily. Among the most notable applications are:
- Mobile phone and smart device screens.
- New generation solar panels.
- Light-emitting diodes (LED).
- Advanced high-efficiency electronic components.
Born in Tokyo in 1936, Shirakawa stood out not only for his scientific publications, but also for his academic commitment. After his time in the United States, he returned to Japan to join the University of Tsukuba, where he continued researching and teaching for more than two decades, establishing himself as a fundamental pillar of Japanese science.
