Photoluminescence, reflectance and photoreflectance spectra in CdS epilayers on Si(111) substrates
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, ISSN: 0021-4922, Vol: 44, Issue: 8, Page: 5913-5917
2005
- 14Citations
- 7Captures
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Article Description
Photoluminescence (PL), reflectance and photoreflectance (PR) spectra were measured on hexagonal CdS films grown directly on hydrogen-terminated Si(111) substrates with 3° off-orientation by hot-wall epitaxy technique. By comparing the PL spectrum to the reflectance and PR spectra in the excitonic energy range, we have unambiguously identified free A- and B-exciton transitions in the CdS films on Si(111) substrates. The peak energies of the A- and B-exciton transitions slightly shift to lower energy by about 3 meV than that of bulk crystal. This peak shifts were caused by a tensile strain parallel to the epilayer surface due to a difference of the thermal expansion coefficients between the grown CdS film and Si substrate. Donor-acceptor pair emission and defect-related "Y" bands as well as free and bound exciton peaks in PL spectra were also studied by means of their temperature (10-250K) and excitation intensity dependences. © 2005 The Japan Society of Applied Physics.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=31644436906&origin=inward; http://dx.doi.org/10.1143/jjap.44.5913; https://iopscience.iop.org/article/10.1143/JJAP.44.5913; https://dx.doi.org/10.1143/jjap.44.5913; https://validate.perfdrive.com/9730847aceed30627ebd520e46ee70b2/?ssa=f138c99e-e93d-46b8-90df-7ce38fc506df&ssb=72518237702&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1143%2FJJAP.44.5913&ssi=52c2a39d-cnvj-40a3-80c4-be82e413ca37&ssk=botmanager_support@radware.com&ssm=547550502040082022710122528435537295&ssn=85303cf60a2e072578f15371d2706808bf420900c3c4-8990-4f21-ad4f4d&sso=b86fbf8c-bc564dd29dea45926b6e0f1a3db36be94f144fec37fcf6a6&ssp=06730526661726596591172679501785730&ssq=74653537022748715705729239025682843637259&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJyZCI6ImlvcC5vcmciLCJfX3V6bWYiOiI3ZjYwMDBkNzYzNGE3Ni05ZTRkLTRjMmMtYjJhMC1mYzAzNGMyZjE1MjkxNzI2NTI5MjM5NDUzMjQwOTg4MDg4LWU4YzUyZjBhZjM2ODk3YTkyNzA5NzAiLCJ1em14IjoiN2Y5MDAwMGMxZDc2YmItMzk2MS00N2VjLTlkZGItNjdmYTVhZTY2ODdlNC0xNzI2NTI5MjM5NDUzMjQwOTg4MDg4LWQxYzBkYTI5YTBhNmNjNzAyNzA5NDkifQ==
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