Determination of the photocarrier lifetime in amorphous silicon with the moving photocarrier grating technique
Japanese Journal of Applied Physics, ISSN: 1347-4065, Vol: 33, Issue: 10A, Page: 1386-1388
1994
- 4Citations
- 1Captures
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Article Description
In this paper we have determined the lifetime of photogenerated carriers in semiconductors using a technique that does not require time or frequency resolved measurements of the photoconductivity. The lifetime is deduced from the DC-short circuit current that is induced by a laser interference grating of period A moving along the semiconductor surface with the velocity ν. We observe a maximum short circuit current density j at a velocity that corresponds to a frequency ω = 2πν/Λ of the moving interference grating. Based on a theoretical analysis of j we show that ω equals the inverse of the photocarrier lifetime τ, if the dielectric relaxation-time τ is short compared to τ and if the grating period is chosen large compared to the ambipolar diffusion length. © The Japan Society of Applied Physics.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0028526496&origin=inward; http://dx.doi.org/10.1143/jjap.33.l1386; https://iopscience.iop.org/article/10.1143/JJAP.33.L1386; https://dx.doi.org/10.1143/jjap.33.l1386; https://validate.perfdrive.com/9730847aceed30627ebd520e46ee70b2/?ssa=027183a8-73c2-43b7-81a3-91044a0d1a2c&ssb=84112286911&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1143%2FJJAP.33.L1386&ssi=32cd1878-cnvj-47e9-9e0c-9cb35de53f20&ssk=botmanager_support@radware.com&ssm=234219330756749895143121871991202637&ssn=a156e02b40f60d49a2d5ca00caa08c119a7f0900c3c4-8990-4f21-a0605e&sso=ebdedf8c-bc564dd29dea6b8b3f0af43198b2a7e82b3943f96b853736&ssp=88457791281726547043172680076869730&ssq=26036273571257012124429239864879371019853&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJfX3V6bWYiOiI3ZjYwMDBkNzYzNGE3Ni05ZTRkLTRjMmMtYjJhMC1mYzAzNGMyZjE1MjkxNzI2NTI5MjM5NDUzMzA2NDczMzk2LTczMjc2M2FiNjNlYjBmYmY1MTQxODMiLCJ1em14IjoiN2Y5MDAwMGMxZDc2YmItMzk2MS00N2VjLTlkZGItNjdmYTVhZTY2ODdlNS0xNzI2NTI5MjM5NDUzMzA2NDczMzk2LWJjY2RkZTY3ZmIwY2UyMjg1MTQxNDEiLCJyZCI6ImlvcC5vcmcifQ==
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