1987
DOI: 10.1088/0022-3727/20/8/012
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Investigation of traps and minority-carrier diffusion length in n-CdSe films

Abstract: Space-charge-limited current in the Au/CdSe/Ni structure has been studied to determine the trap depth and density in electro-deposited n-CdSe films. A high density of shallow traps was observed. Donor concentration, band bending and minority-carrier diffusion length measurements were carried out by studying the photocurrent-voltage characteristics of an n-CdSe film/electrolyte rectifying barrier using a 5 mW He-Ne laser for illumination. These parameters have been correlated with the observed performance of so… Show more

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Cited by 22 publications
(9 citation statements)
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References 21 publications
(7 reference statements)
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“…It is also observed that the area under the curve increases as the duty cycle increases. The peak energy associated with the Se(3d 5/2 and 3d 3/2 ) level, which appeared at 53.9 and 59.2 eV respectively, the peak energy associated with Cd(3d 5/2 and 3d 3/2 ) occurred in the range of 405 and 411.7 eV respectively, which are in good agreement with the literature [9,10]. The peak values of Zn and Cd are found to shift towards Cd value in CdSe as the CdSe content increased.…”
Section: Resultssupporting
confidence: 91%
“…It is also observed that the area under the curve increases as the duty cycle increases. The peak energy associated with the Se(3d 5/2 and 3d 3/2 ) level, which appeared at 53.9 and 59.2 eV respectively, the peak energy associated with Cd(3d 5/2 and 3d 3/2 ) occurred in the range of 405 and 411.7 eV respectively, which are in good agreement with the literature [9,10]. The peak values of Zn and Cd are found to shift towards Cd value in CdSe as the CdSe content increased.…”
Section: Resultssupporting
confidence: 91%
“…Manuscript submitted Jan. 15, 1992; revised manuscript received Jan. 6, 1992. The University of Guelph assisted in meeting the publication costs of this article.…”
Section: Acknowledgmentsmentioning
confidence: 99%
“…Οι επιφανειακές ατέλειες επιβραδύνουν τη μεταφορά φορτίου στη ζώνη εξάντλησης (περιοχή φορτίου χώρου) του ημιαγωγού και μειώνουν τη φωτοβολταϊκή απόδοση. Σύμφωνα με τους Pandey et al [129] ένα από τα αποτελέσματα της πύρωσης είναι η μετατόπιση του δυναμικού επίπεδης ζώνης (flat-band potential) σε πιό καθοδικές τιμές 1 . Η μετατόπιση αυτή είναι υπεύθυνη για αύξηση της τάσης ανοιχτού κυκλώματος (Voc)• Παρατηρείται, ότι στις συνθήκες αυτές η απόδοση μετατροπής σε PEC χαρακτηρίζεται από μεγαλύτερη ευαισθησία στο μέγιστο μήκος διάχυσης των οπών, το οποίο επίσης αυξάνει με την πύρωση λόγω του μεγαλύτερου μέσου μεγέθους των κρυσταλλιτών.…”
Section: φωτοηλεκτροχημική απόκρισηunclassified