課程名稱︰電子與光電高分子
課程性質︰選修
課程教師︰陳文章教授
開課學院:工學院
開課系所︰化學系(所)、高分子所
考試日期(年月日)︰2007/04/02
考試時限(分鐘):100
是否需發放獎勵金:是
(如未明確表示,則不予發放)
試題 :
1.From the point of view on chemical structure and electronic structure,
please describe why polyethylene and polyacetylene are insulator and
semiconductor, respectively. (10 point)
2.Please describe the definitions of ionization potential, electronic
affinity, and bandwidth and draw the energy diagram for them. (20 points)
3.Please describe the definitions of soliton, polaron, and bipolaron. (10
points)
4.Please explain why conjugated polymers require high levels of doping to
achieve high conductivity and compare with inorganic semiconductors such as
Si. (20 points)
5.If polythiophene is doped by I2, please describe the doping mechanism
using polaron and bipolaron by chemical structure as well as by energy
diagram. (20 points)
6.Explain why conjugated polymers have poor solubility and the possible
strategies to improve the solubility. (10 points)
7.Could we achieve zero band gap for conjugated polymers? If it is possible,
please suggest your idea. (10 points)
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