OPV solar cells

Question 1

What is the benefit of a “bulk heterojunction solar cell architecture”
compared to a planar heterojunction for OPV?

Answer 1

1. The donor/acceptor phase can be controlled
2. Very large interfacial area
3. thickness of BHJ can be increased as to maximise light absorption

Question 2

Describe the perovskite crystal structure. How does a common
composition of a perovskite for PV look like?

Answer 2

I_diff < 1/alpha

Question 3

Describe the perovskite crystal structure. How does a common
composition of a perovskite for PV look like?

Answer 3

I_diff < 1/alpha

Question 4

State the disadvantages of Perovskite that makes it hard to be commercialised

Answer 4

Pb is toxic

Very sensitive to temperature, light and humidity.