Journal
PHYSICAL REVIEW B
Volume 87, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.125421
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [23104725, 23654106]
- Grants-in-Aid for Scientific Research [23654106] Funding Source: KAKEN
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We have experimentally compared the excitonic properties of hybrid multiple quantum wells, (C6H5-C2H4NH3)(2)PbBr4 and (C4H9NH3)(2)PbBr4, using photoluminescence, reflection, and photoluminescence excitation measurements. We focused on the contribution of the image charge effect (ICE) to the excitonic energy structure in these materials which have different dielectric constants of the barrier layers. We have found that the binding energies of the 2s and 3s excitons are considerably enhanced by ICE, while the contribution of ICE to the 1s excitons is smaller because of the small Bohr radius, which is comparable to the well width. DOI: 10.1103/PhysRevB.87.125421
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