Mobile Electric Power.

Bloomfield, Valerie; Bloomfield, D.; Johnson, Bradley Q.

doi:10.21236/ada296709

Cited by 4 publications

(3 citation statements)

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“…[1][2][3][4][5][6][7] Metalorganic vapor-phase epitaxy (MOVPE) is an attractive technology for large-scale production of these devices. 1,5,[7][8][9][10][11] However, the MOVPE of ZnTe is not completely understood at this time.…”

Section: Introductionmentioning

confidence: 99%

“…The wide bandgap of zinc telluride ( E g = 2.26 eV) makes it a useful material in several applications, such as the first unit in a tandem solar cell, as a buffer layer for an HgCdTe infrared detector, or as part of the graded p-Zn(Te)Se multiquantum-well structure in a blue-green laser diode. − Metalorganic vapor-phase epitaxy (MOVPE) is an attractive technology for large-scale production of these devices. ,,− However, the MOVPE of ZnTe is not completely understood at this time. Information is lacking on the reactions that occur during film growth and on the products other than ZnTe that are exhausted from the reactor.…”

Section: Introductionmentioning

confidence: 99%

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Reaction Chemistry of ZnTe Metalorganic Vapor-Phase Epitaxy

1997

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The reaction chemistry of zinc telluride (ZnTe) metalorganic vapor-phase epitaxy (MOVPE) from dimethylzinc (DMZn), diethylzinc (DEZn), and diisopropyltelluride (DIPTe) has been studied using on-line gas chromatography and infrared spectroscopy. Two growth regimes have been discovered: one at low values of the II/VI ratio and the other at higher values of the II/VI ratio. In the first regime, the group VI compound is consumed in excess, while in the second regime, the group II compound is consumed in excess. The crossover point lies at II/VI ) 5.0 for DMZn and at II/VI ) 0.3 for DEZn. Stoichiometric ZnTe is deposited under all growth conditions. The excess DIPTe consumed is converted into volatile diisopropylditelluride and isopropyltellurol. Conversely, the excess DEZn or DMZn consumed produces zinc metal. These waste byproducts accumulate in the outlet of the reactor. The hydrocarbon products generated from the ethyl and isopropyl ligands are indicative of radical disproportionation, recombination, and hydrogenation reactions. However, the methyl ligands mainly undergo surface hydrogenation to produce methane.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reaction Chemistry of ZnTe Metalorganic Vapor-Phase Epitaxy

1997

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“…548 nm) in the green region of the electromagnetic spectrum, can be a useful material in several applications such as green lightemitting diodes, buffer layers for HgCdTe IR detectors, or as the first unit in a tandem solar cell. 15 Until now, only two reports on the preparation of colloidal ZnTe nanocrystals exist; however the resulting nanocrystals were either large (length 500-1200 nm, width 30-100 nm) 16 or only their optical properties were investigated without isolation or characterization of the nanocrystals. 17 In fact, there have not been any reports on isolated ZnTe nanocrystals < 10 nm.…”

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confidence: 99%