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免费慕课 有机电子学(双语)(南京邮电大学)321005 最新慕课中国大学MOOC答案-亿搜题库

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Q1

1、判断题:
‎Organic molecule can contain metal atom.‎
选项:
A: 正确
B: 错误
答案: 【 正确

2、判断题:
‌There are some differences in opto-electronics processes between organic and inorganic materials.‏
选项:
A: 正确
B: 错误
答案: 【 正确

3、判断题:
‌There is only one kind of exciton.‎
选项:
A: 正确
B: 错误
答案: 【 错误

4、判断题:
‎All organic materials have small conductivity, i.e., they are insulators.‎
选项:
A: 正确
B: 错误
答案: 【 错误

5、判断题:
​Not all organic materials are photoelectron-active.​
选项:
A: 正确
B: 错误
答案: 【 正确

Unit 10 Electrical Properties and Related Processes in Organic Materials-II

Q10

1、判断题:
‍Irradiating 560 nm light on an organic material with bandgap of 3.0 eV, photogeneration of carrier is possible‌
选项:
A: 正确
B: 错误
答案: 【 错误

2、判断题:
‍When two metal with different Fermi levels contact, electron will flow from metal with higher Fermi level, and the two Fermi levels will be aligned at equilibrium condition‎
选项:
A: 正确
B: 错误
答案: 【 正确

3、判断题:
‎According to the value of contact barrierbetween metal and nonmetal materials, a contact can either facilitate carrier injection or prevent carrier injection‏
选项:
A: 正确
B: 错误
答案: 【 正确

4、判断题:
‎The current in organic solid is always controlled by space charge limited current​
选项:
A: 正确
B: 错误
答案: 【 错误

Unit 11 Electrical Properties and Related Processes in Organic Materials-III

Q11

1、判断题:
‎The carrier transport mobility in organic crystals is generally lower than that in amorphous organic materials‍
选项:
A: 正确
B: 错误
答案: 【 错误

2、判断题:
‎The bandlike carrier transport is faster than hopping carrier transport‌
选项:
A: 正确
B: 错误
答案: 【 正确

3、判断题:
‌In disordered organic films, the carrier mobility increases with increase of electric field and decreases with temperature‌
选项:
A: 正确
B: 错误
答案: 【 错误

4、判断题:
‎In organic crystalline material, the carrier mobility increases with increase of temperature ‌
选项:
A: 正确
B: 错误
答案: 【 错误

5、判断题:
‏Increasing the doping density will certainly lower the mobility of carriers in disordered organic materials‌
选项:
A: 正确
B: 错误
答案: 【 错误

Unit 12 Characterization of Organic Materials

Q12

1、判断题:
‏In DSC analysis, the glass transition point is an exothermal process‎
选项:
A: 正确
B: 错误
答案: 【 错误

2、判断题:
‏The redox means a pair of oxidation and reduction species‏
选项:
A: 正确
B: 错误
答案: 【 正确

3、判断题:
​Generally speaking, the 8% weight loss in thermal gravity analysis is considered as decomposition temperature‌
选项:
A: 正确
B: 错误
答案: 【 错误

4、判断题:
‏Triplet energy state can be probed by phosphorescent spectrum, which corresponds to the high-energy peak‍
选项:
A: 正确
B: 错误
答案: 【 正确

5、判断题:
‏In intrinsic semiconductor and insulator, the Fermi level locates at the half position of material energy gap‍
选项:
A: 正确
B: 错误
答案: 【 正确

6、判断题:
‍UPS refers to ultraviolet

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