A Research On Photo Driven Heterogeneous Catalysis And Its Application For Semiconductors And Supercapacitors Impressive

A Research On Photo Driven Heterogeneous Catalysis And Its Application For Semiconductors And Supercapacitors Impressive

Length: 731 words (2.1 double-spaced pages)

Rating: Better Essays

Open Document

Essay Preview

Before lecture began for Chemistry 4A, I had already developed an opinion of Ms. Tanja Cuk. Indeed, I found her research on photo-driven heterogeneous catalysis and its application to semiconductors and supercapacitors impressive. However, because Professor Cuk 's research is largely focused within the field of physical chemistry, I felt distant from her; my interests lay within the field of chemical biology, not physical chemistry. In all honesty, I thought physical chemistry was a difficult, tedious, and bland field of study. Cumulatively, I found my first impressions of Professor Cuk to be of admiration, intimidation, and apathy. I believed, after all, that she thought of all freshmen as "annoying" or "stupid." My perceptions were seemingly reinforced when she began teaching quantum mechanics.
Beginning in early September, my Chemistry 4A class began covering the quantum behavior of light. I understood how light acts both as a particle and wave, as shown by the photoelectric effect and in the double-slit experiment. However, I found it more difficult to grasp a firm understanding of the trajectories of bound and unbound electrons. Professor Cuk taught in lecture that the wave functions for unbound and bound electrons were ψ(x,t)=sin⁡(kx-wt),"where" k=2π/λ and ψ(x)=sin⁡(kx),where k=nπ/L , respectively. Certainly, I understood that unbound electrons did not have angular momentums, while bound electrons did. I also understood how the equations for unbound electrons were traveling waves, while those for bound electrons were standing waves. But what I could not understand was why there were different wave vectors (k=⋯) to represent the two types of electrons. Why do standing waves have no relation to time, especially when time i...

... middle of paper ...

... to be so helpful that I am planning to go to as many as possible. I cannot extrapolate how Professor Cuk sees me, although I am sure she does not view me as "one of those annoying freshmen who wastes my time." I can, however, hope that she considers me a competent, inquisitive, and active student of hers. Before coming to university, I believed that professors disliked undergraduates because professors have to divert time from their research to teach. However, upon coming to University of California, Berkeley and attending several office hours, I have instead found that professors are more than willing to talk with, teach, and guide undergraduates. Some professors, such as Ms. Tanja Cuk, are even excited to teach undergraduate students. It is these professors who truly make an impact on students, and I am only just beginning to realize the usefulness of office hours.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »