Lake Shore provides AC Hall measurements for PEC material research

From The Lake Shore Blog

Hematite Chunk
A Piece of “As-Mined” Hematite

Online  —  “Lake Shore has also been collaborating with scientists from the University of Texas (UT) at Austin, along with other institutions, in work aimed at developing more economically feasible photogeneration technology.

“This goal of this PEC (photoelectrically cell) solar water-splitting research is to take a relatively abundant semiconductor material and synthesize it so as to enable the efficient conversion of solar energy to chemical energy in the form of clean hydrogen (H2).

“(For more about the sunlight harnessing/water-splitting process, the U.S. Department of Energy has a nice, succinct presentation on its website.)

“One promising candidate material for use as a photoelectrode in PEC water splitting applications is hematite (?-Fe2O3). A mineral form of iron oxide, hematite is highly stable and abundant, with mineral deposits found throughout the world.

“But the metal oxide semiconductor alone is insufficient as a photoelectrode material.

“Thus, in order for water oxidation for solar-powered water splitting to occur, doping and synthesis of hematite crystals are required to enhance the material’s electrical properties.

“Since the 1970s, scientists have experimented with a number of doping and deposition techniques for hematite. The UT led group synthesized single silicon-doped crystals (Si:Fe2O3) via chemical vapor transport, with Si incorporation on the order of 1019 cm-3.”

Read the complete article by Andy Phillips in “Case studies, Research and Applications” on the Lake Shore Blog at:

Lake Shore provides the products and systems needed for precise measurements over a broad range of temperature and magnetic field conditions in electronics, clean energy, nanotechnology, and many other applications.

Lake Shore Cryotronics Inc
575 McCorkle Blvd
Westerville, OH 43082 USA

Phone: (614) 891-2244
Fax: (614) 818-1600