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由喷涂型GaO与溅射型NiO和CuO制成的异质结器件

Heterojunction Devices Fabricated from Sprayed -Type GaO, Combined with Sputtered -Type NiO and CuO.

作者信息

Dimopoulos Theodoros, Wibowo Rachmat Adhi, Edinger Stefan, Wolf Maximilian, Fix Thomas

机构信息

Energy Conversion and Hydrogen Technologies, Center for Energy, AIT Austrian Institute of Technology, Giefinggasse 2, 1210 Vienna, Austria.

ICube Laboratory, Université de Strasbourg and Centre National de la Recherche Scientifique (CNRS), 23 Rue Du Loess, BP 20 CR, F-67037 Cedex 2 Strasbourg, France.

出版信息

Nanomaterials (Basel). 2024 Feb 1;14(3):300. doi: 10.3390/nano14030300.

DOI:10.3390/nano14030300
PMID:38334571
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10856998/
Abstract

This work reports on the properties of heterojunctions consisting of -type GaO layers, deposited using ultrasonic spray pyrolysis at high temperature from water-based solution, combined with -type NiO and CuO counterparts, deposited by radio frequency and reactive, direct-current magnetron sputtering, respectively. After a comprehensive investigation of the properties of the single layers, the fabricated junctions on indium tin oxide (ITO)-coated glass showed high rectification, with an open circuit voltage of 940 mV for GaO/CuO and 220 mV for GaO/NiO under simulated solar illumination. This demonstrates in praxis the favorable band alignment between the sprayed GaO and CuO, with small conduction band offset, and the large offsets anticipated for both energy bands in the case of GaO/NiO. Large differences in the ideality factors between the two types of heterojunctions were observed, suggestive of distinctive properties of the heterointerface. Further, it is shown that the interface between the high-temperature-deposited GaO and the ITO contact does not impede electron transport, opening new possibilities for the design of solar cell and optoelectronic device architectures.

摘要

这项工作报道了由通过高温超声喷雾热解法从水基溶液中沉积的p型GaO层与分别通过射频和反应性直流磁控溅射沉积的n型NiO和CuO对应物组成的异质结的特性。在对单层特性进行全面研究之后，在氧化铟锡（ITO）涂层玻璃上制备的结显示出高整流性，在模拟太阳光照下，GaO/CuO的开路电压为940 mV，GaO/NiO的开路电压为220 mV。这在实践中证明了喷涂的GaO和CuO之间具有良好的能带对准，导带偏移小，而在GaO/NiO的情况下，两个能带预期具有大的偏移。观察到两种类型的异质结之间的理想因子存在很大差异，这表明异质界面具有独特的特性。此外，研究表明高温沉积的GaO与ITO接触之间的界面不会阻碍电子传输，这为太阳能电池和光电器件架构的设计开辟了新的可能性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/1831be90fa9e/nanomaterials-14-00300-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/3b2feb1bc8a3/nanomaterials-14-00300-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/24eaa67a6b43/nanomaterials-14-00300-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/02e48c580562/nanomaterials-14-00300-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/fdbee029ac4d/nanomaterials-14-00300-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/0dba0705c56c/nanomaterials-14-00300-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/9669bf54221b/nanomaterials-14-00300-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/f4409bf2564b/nanomaterials-14-00300-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/129ddcba361c/nanomaterials-14-00300-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/3aa5941874b9/nanomaterials-14-00300-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/1831be90fa9e/nanomaterials-14-00300-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/3b2feb1bc8a3/nanomaterials-14-00300-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/24eaa67a6b43/nanomaterials-14-00300-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/02e48c580562/nanomaterials-14-00300-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/fdbee029ac4d/nanomaterials-14-00300-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/0dba0705c56c/nanomaterials-14-00300-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/9669bf54221b/nanomaterials-14-00300-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/f4409bf2564b/nanomaterials-14-00300-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/129ddcba361c/nanomaterials-14-00300-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/3aa5941874b9/nanomaterials-14-00300-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/402f/10856998/1831be90fa9e/nanomaterials-14-00300-g010.jpg

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