Step 1: Understand the requirements for solar cell materials.
A good solar cell material needs to have high absorption (to absorb as much light as possible), a suitable energy band gap (for efficient conversion of light into electrical energy), and high availability (so that the material can be produced at scale).
Step 2: Identify the incorrect characteristic.
High conductivity is not a desirable property for solar cell materials.
Ideally, the material should have moderate conductivity to allow efficient charge separation without excessive recombination of carriers.