MILLENNIUM TECHNOLOGY PRIZE LAUREATE MICHAEL GRAETZEL
1. Complete the sentence:
Making 1. .......................... .......................... is not necessarily difficult. All we need is two pieces of 2. .......................... .......................... some 3. .......................... .......................... graphite, electrolyte 4. .......................... and 5. .......................... that can be 6. .......................... and 7. .......................... from berries.
2. Answer the questions:
a. Why could the dye - sensitized solar cells be used almost everywhere?
b. Which city does the originator of the dye - sensitized solar cells come from?
c. What was the base of Michael Graetzel's research?
d. Do organic solar panels have the same efficiency level as silicon panels?
e. Where could solar cells be used?
3. Watch the film again and answer the questions:
a. How does Michael Graetzel explain the process of natural photosynthesis?
b. What did he ask Hans to do?
c. When he saw the result of the experiment, did he have the same opinion about it as Hans?
d. What are the advantages of solar panels?
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e. Can colourless panels produce electric power?