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Grade 12th passPhysical Chemistry

Why is caesium used frequently in photo voltaic cell but not lithium?

Profile image of Mehroz
9 Years agoGrade 12th pass
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1 Answer

Profile image of Vikas TU
9 Years ago
Caesium being in large size and has outemost sheels and orbitals as bulkier are easy too emit the electrons when comes under the UV radiations or any phtoelectric effect. Li being very small however used less than Cs as the enrgy reuired is more as due to the electrons embedded into it within deep.