Juan Bisquert (Düsseldorf, 1962), is a Spanish physicist known for his contributions to materials and devices for sustainable energy production.

His work on solar cells relates physical principles and modelling of electronic and ionic processes to the interpretation of measurement techniques for the photovoltaic operation.

[4][5] From 2014 to 2022 he appeared in the list "ISI Highly Cited Researchers" He wrote a series of books that have been published in the single volume "The Physics of Solar Energy Conversion".

He created nanoGe conferences.. His doctoral thesis was in the field of mathematical physics, on problems of algebraic quantization.

[8][9] Bisquert has developed the application of measurement techniques and physical modelling that relate the operation of the photovoltaic devices to the elementary electronic stages that take place at the nanoscale.