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MOCVD grown quantum dot-in-a-well solar cells

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Date

2010

Authors

Majid, A
Fu, Lan
Jagadish, Chennupati
Tan, Hark Hoe

Journal Title

Journal ISSN

Volume Title

Publisher

Trans Tech Publications Ltd.

Abstract

This paper reports the experimental work on the characterization of quantum dot-in-well (DWELL) solar cell grown by metal-organic chemical vapor deposition (MOCVD) without employing any post-growing optimization like antireflection coating and metal grid. The structure of the 10-layer DWELL solar cells is studied by cross-sectional transmission electron microscopy (TEM). Room temperature photoluminescence (PL) spectra show strong quantization at 1178.5 nm with a linewidth of 79.9 nm. External quantum efficiency spectra show enhancement in the spectral response of the photocurrent with respect to the reference quantum dot cell (without DWELL structure). In spite of the reduction in conversion efficiency due to poor collection of current in external circuit compared to reference quantum dot cell it show the improvement in open circuit voltage.

Description

Keywords

Keywords: Dot in wells; GaAs; IBSC; MOCVD; Quantum Dot; Antireflection coatings; Conversion efficiency; Gallium alloys; Gallium arsenide; Metallorganic chemical vapor deposition; Nanotechnology; Open circuit voltage; Organic chemicals; Scanning electron microscopy; Dot-in-well; GaAs; IBSC; InGaAs; MOCVD; Nanotechnology; Quantum dot; Quantum structured; Solar cells

Citation

URI

http://hdl.handle.net/1885/83813

Collections

ANU Research Publications

Source

Key Engineering Materials

Type

Conference paper

Book Title

Entity type

Access Statement

License Rights

DOI

10.4028/www.scientific.net/KEM.442.398

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