Method for producing a high purity trisilane product from the pyrolysis of disilane

A method of producing trisilane through a pyrolysis of disilane in a single reactor, comprising:

• a) introducing a first gas mixture into a single reactor, wherein the first gas mixture enters the reactor at about ambient temperature and the first gas mixture comprises disilane and an inert gas, and is substantially free of monosilane;
• b) producing a second gas mixture in the reactor through a pyrolysis reaction of the first gas mixture, wherein the reactor is maintained at a first temperature and the second gas mixture comprises trisilane;
• c) introducing the second gas mixture into a condensing zone, wherein the condensing zone comprises at least a first and a second condenser;
• d) condensing the second gas mixture in the condensing zone to form a condensed mixture;
• e) separating disilane from the condensed mixture, to form a concentrated mixture of trisilane;
• and
• f) purifying the concentrated mixture of trisilane to obtain a high purity trisilane product.