A new material for transparent electronics
The performance of solar cells, flat panel displays, and other electronics are limited by today’s materials. A new material, created by modifying a transparent insulating oxide, replacing up to 25 percent of the lanthanum ions in the host material with strontium ions, offers considerable promise.
The new perovskite film, with the formula SrxLa1-xCrO3, x up to 0.25, conducts electricity more effectively than the unmodified oxide and yet retains much of the transparency to visible light exhibited by the pure material.Materials that are both electrically conductive and optically transparent are needed for more efficient solar cells, light detectors, and several kinds of electronic devices that are by nature transparent to visible light. Of particular importance are new materials that conduct electricity by using missing electrons, otherwise known as “holes.” The new perovskite film falls into this category.