21. The cells are made of Gallium Arsenide and are 27 % efficient. 22. But gallium arsenide is much more expensive than silicon. 23. Cadmium arsenide does not decompose when it is vaporized and re-condensed. 24. Indium arsenide is sometimes used together with indium phosphide. 25. Other boron arsenide compounds are known, including the subarsenide B 12 As 2 26. Vitesse makes digital chips called gallium arsenide integrated circuits that are faster than silicon. 27. He made electronic materials, like gallium arsenide , that Nichia tried to sell. 28. Aluminium gallium arsenide is used as a barrier material in GaAs based heterostructure devices. 29. Indium gallium arsenide ( InGaAs ) is also a compound III-V semiconductor. 30. Some solar cars use gallium arsenide solar cells, with efficiencies around thirty percent.
