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Q. |
Which of the following materials is not used as a starting material in vapor-phase deposition technique? |
A. | sicl4 |
B. | gecl4 |
C. | o2 |
D. | b2o3 |
Answer» D. b2o3 | |
Explanation: in vapor-phase deposition technique, starting materials are volatile organic compounds. these materials are distilled to reduce the concentration of transition metal impurities. b2o3 is used as a dopant. |
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