菜媳旗告坑错膊德菠钠唇遂迟
对应课程:点击查看
起止时间:2020-08-31到2021-01-20
更新状态:已完结
Unit 1： Introduction to Organic Electronics Q1
1、 Organic molecule can contain metal atom.
A:正确
B:错误
答案: 正确
2、 There are some differences in opto-electronics processes between organic and inorganic materials.
A:正确
B:错误
答案: 正确
3、 There is only one kind of exciton.
A:正确
B:错误
答案: 错误
4、 All organic materials have small conductivity, i.e., they are insulators.
A:正确
B:错误
答案: 错误
5、 Not all organic materials are photoelectron-active.
A:正确
B:错误
答案: 正确
Unit 2： Bonding and Corresponding Concepts-Properties in Solids Q2
1、 Carbon atom can only form four bonds with adjacent atoms
A:正确
B:错误
答案: 错误
2、 sp3 hybridization of carbon atom has Pi- electron.
A:正确
B:错误
答案: 错误
3、 Conjugation size of organic molecular partially determined the carrier transportation property.
A:正确
B:错误
答案: 正确
4、 Covalent bonding can also exist in inorganic materials.
A:正确
B:错误
答案: 正确
5、 σ electron can easily delocalize.
A:正确
B:错误
答案: 错误
Unit 3： Electronic Structure and Related Theories in Organic Materials Q3
1、 HOMO and LUMO concept can be used for all isolated organic or inorganic molecules.
A:正确
B:错误
答案: 正确
2、 Ionization potential determines the ability of hole injection to a molecule.
A:正确
B:错误
答案: 正确
3、 Electron affinity is the ability of molecule to attract electron.
A:正确
B:错误
答案: 正确
4、 Metal work function is different with Fermi level in number.
A:正确
B:错误
答案: 错误
5、 Conduction band is fully filled with electrons.
A:正确
B:错误
答案: 错误
Unit 4： Molecular Interaction and Stacking Q4
1、 Hydrogen bonding belongs to permanent dipole-dipole interaction, it is one of the van der Waals interaction.
A:正确
B:错误
答案: 正确
2、 Stable molecular stacking requires minimized lattice energy.
A:正确
B:错误
答案: 正确
3、 Compared to Debye force, London force is more polarisability-dependent.
A:正确
B:错误
答案: 正确
4、 Organic solids are all in amorphous state.
A:正确
B:错误
答案: 错误
5、 All organic molecules have permanent dipole.
A:正确
B:错误
答案: 错误
Unit 5： Energy Related Processes in Organic Materials-I Q5
1、 In triplet state, the spin directions of the two unpaired electrons are opposite
A:正确
B:错误
答案: 错误
2、 In the ground state of organic molecules, electrons are generally paired, and the total spin number is zero
A:正确
B:错误
答案: 正确
3、 Non-radiative decay processes refer to the electron transition from higher energy level to lower energy level without light emission
A:正确
B:错误
答案: 正确
4、 In an excited organic molecule, the nonradiative decay processes always exist
A:正确
B:错误
答案: 正确
5、 An internal conversion process can not occur between two different electronic levels
A:正确
B:错误
答案: 错误
6、 The rate of internal conversion is faster than the radiative decay process
A:正确
B:错误
答案: 正确
7、 Internal conversion can occur within the same electronic level, as well as different electronic levels
A:正确
B:错误
答案: 正确
8、 Generally, inter system crossing (ISC) is forbidden, spin-orbital coupling can release the forbidden feature
A:正确
B:错误
答案: 正确
9、 Spin-orbital coupling renders triplet state lost its feature and exhibiting some singlet characteristic, which can promote inter system crossing (ISC) and phosphorescent emission
A:正确
B:错误
答案: 正确
如需购买完整答案，请点击下方红字：
获取更多中国大学慕课答案，请点击这里，进入mooc.mengmianren.com
蚂糖错干贰碌侈康赌吵亮撮辩