ZnO‐Nanowire‐Inserted GaN/ZnO Heterojunction Light‐Emitting Diodes

Jeong, Min Chang; Oh, Byung Ho; Ham, Moon Ho; Lee, Sang Won; Myoung, Jae Min

doi:10.1002/smll.200600479

Cited by 154 publications

(102 citation statements)

References 14 publications

(16 reference statements)

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“…More often in LEDs, instead of ZnO homojunctions, heterojunctions of n-ZnO and other p-type materials have been used, of which p-GaN is of particular interest considering it has similar crystallographic and electronic properties to ZnO [11,[367][368][369]. In addition, it has been suggested that the ZnO nanowire/GaN substrate heterojunction has a higher carrier injection efficiency and a higher recombination rate than other junctions [370].…”

Section: Inorganic Heterojunction Ledsmentioning

confidence: 99%

One-dimensional ZnO nanostructures: Solution growth and functional properties

2011

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One-dimensional (1D) ZnO nanostructures have been studied intensively and extensively over the last decade not only for their remarkable chemical and physical properties, but also for their current and future diverse technological applications. This article gives a comprehensive overview of the progress that has been made within the context of 1D ZnO nanostructures synthesized via wet chemical methods. We will cover the synthetic methodologies and corresponding growth mechanisms, different structures, doping and alloying, positioncontrolled growth on substrates, and finally, their functional properties as catalysts, hydrophobic surfaces, sensors, and in nanoelectronic, optical, optoelectronic, and energy harvesting devices.

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Section: Inorganic Heterojunction Ledsmentioning

confidence: 99%

One-dimensional ZnO nanostructures: Solution growth and functional properties

2011

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“…The synthesis of aligned ZnO NW arrays has been studied [9,10] during the past several years due to the various potential applications of aligned ZnO NW arrays in light emitting diodes [11][12][13], lasers [14,15], solar cells [16][17][18], nanogenerators [19][20][21] and piezotronics [22,23], etc. Various methods have been reported for synthesizing ZnO NW arrays, mainly including physical vapor phase transport and deposition [24][25][26], metal organic chemical vapor deposition (MOCVD) [27,28] and the low temperature hydrothermal approach [29][30][31]. Nevertheless, the hydrothermal is advantageous when compared to other methods because the growth temperature is suitable for soft substrates like e.g.…”

Section: Introductionmentioning

confidence: 99%

Handwriting enabled harvested piezoelectric power using ZnO nanowires/polymer composite on paper substrate

et al. 2014

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We here, present a flexible handwriting driven nanogenerator (NG) based on zinc oxide (ZnO) nanowires (NWs)/polymer composite grown/deposited on paper substrate. The targeted configuration is composed of ZnO NWs/PVDF polymer ink pasted and sandwiched between two pieces of paper with ZnO NWs grown chemically on one side of each piece of paper.Other configurations utilizing a ZnO/PVDF ink with different ZnO morphology on paper platform and others on plastic platform were fabricated for comparison. The mechanical pressure exerted on the paper platform while handwriting is then harvested by the ZnO NWs/polymer based NG to deliver electrical energy. Two handwriting modes were tested; these were slow (low pressure) and fast (high pressure) handwriting. The maximum achieved harvested open circuit voltage was 4.8 V. While an out power density as high as 1.3 mW/mm 2 was estimated when connecting the NG to a 100 Ω load resistor. The observed results were stable and reproducible. The present NG provides a low cost and scalable approach with many potential applications, like e.g. programmable paper for signature verification.

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“…Due to the p-type doping problem, many researchers reported on the heterostructures with n-type ZnO grown on p-type materials of Si, GaN, and conducting oxides [27,54,140,141]. Among the possible heterostructures, the structure ZnO/GaN has attracted extensive interest [142][143][144] because device structures such as n-ZnO/pGaN can be readily realized because the lattice mismatch between ZnO and GaN is modest (1.9%) [145]. Another alternative p-type material is Si [146].…”

Section: Hybrid / Heterostructuresmentioning

confidence: 99%

Zinc Oxide Nanophotonics

Choi

Aharonovich

2015

Nanophotonics

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Abstract:The emerging field of nanophotonics initiated a dedicated study of single photon sources and optical resonators in new class of materials. One such material is zinc oxide (ZnO) that has been long considered only for classical light-emitting applications. However, it recently showed promise for quantum photonics technologies. In this review, we highlight the recent advances in studying single emitters in ZnO, engineering of optical cavities and practical nanophotonics devices including nanolasers and electrically triggered devices. We finalize with an outlook at this promising area, as well as provide perspectives and open questions in solid state nanophotonics employing ZnO.

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ZnO‐Nanowire‐Inserted GaN/ZnO Heterojunction Light‐Emitting Diodes

Cited by 154 publications

References 14 publications

One-dimensional ZnO nanostructures: Solution growth and functional properties

One-dimensional ZnO nanostructures: Solution growth and functional properties

Handwriting enabled harvested piezoelectric power using ZnO nanowires/polymer composite on paper substrate

Zinc Oxide Nanophotonics

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