Question

Chloro·benzene is used as an antisolvent during this process to improve the crystallinity of perov·skite solar cells. For 10 points each:
[10h] Name this technique of preparing thin films by centrifuging a volatile ink that spreads out and dries on the target substrate. It is an easy way to make photo·resists for micro·fabrication.
ANSWER: spin coating [or spin casting; prompt on coating or casting]
[10e] Painting with perov·skite inks is far easier than the traditional method of making photo·voltaic silicon: the “chemical vapor” form of this phase transition from a gas to a solid.
ANSWER: deposition [or desublimation; or depositing; accept chemical vapor deposition; prompt on CVD by asking “what does that stand for?”]
[10m] Due to its toxicity, chloro·benzene is being phased out as an antisolvent in favor of this greener organic solvent. This ester is the product when a two-carbon alcohol condenses with a two-carbon carboxylic acid.
ANSWER: ethyl acetate [or EA; or ethyl ethanoate or EtOAc; or ETAC]

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Data

TeamOpponentPart 1Part 2Part 3Total
Brown AWUSTL A010010
Chicago AOhio State A010010
Chicago CNorth Carolina A010010
Claremont AIowa State A010010
Cornell AStanford A0101020
Cornell BToronto A010010
Duke AChicago B1010020
Florida BJohns Hopkins A0101020
Georgia Tech BYale B010010
Harvard AColumbia A010010
Houston AMichigan A010010
Indiana ATexas A010010
MIT AMinnesota A010010
Maryland AGeorgia Tech A010010
Minnesota BPurdue A010010
NYU AImperial A010010
Penn AIllinois A010010
Penn State AVirginia A010010
Rutgers AWUSTL B010010
Rutgers BColumbia B010010
South Carolina AMcGill A0000
UC Berkeley ANorthwestern A010010
UC Berkeley BVanderbilt A010010
Yale AFlorida A010010