Hybrid Nanostructured Porous Silicon-Silver Layers for Wideband Optical Absorption

Martín-Palma, Raúl J.; McAtee, Patrick D.; Ramadan, Rehab; Lakhtakia, Akhlesh

doi:10.1038/s41598-019-43712-7

Cited by 24 publications

(21 citation statements)

References 22 publications

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“…Once the etching process was completed, the nanoPS layers grown onto Si were cleaned with ethanol to remove any residuals from the HF solution, and finally blown dry with a mild stream of dry nitrogen. The experimental setup of the anodization process has previously been described and is schematically presented in [25].…”

Section: Fabrication Of the Nanops Layersmentioning

confidence: 99%

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Electrical Characterization of MIS Schottky Barrier Diodes Based on Nanostructured Porous Silicon and Silver Nanoparticles with Applications in Solar Cells

Ramadan

Martín-Palma

2020

Energies

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The accurate determination of the electrical properties of photovoltaic devices is of utmost importance to predict and optimize their overall optoelectronic performance. For example, the minority carrier lifetime and the carrier diffusion length have a strong relationship with the carrier recombination rate. Additionally, parasitic resistances have an important effect on the fill factor of a solar cell. Within this context, the alternating current (AC) and direct current (DC) electrical characteristics of Si-based metal–insulator–semiconductor (MIS) Schottky barrier diodes with the basic structure Al/Si/TiO2/NiCr were studied, aiming at using them as photovoltaic devices. The basic diode structure was modified by adding nanostructured porous silicon (nanoPS) layers and by infiltrating silver nanoparticles (AgNPs) into the nanoPS layers, leading to Al/Si+nanoPS/TiO2/NiCr and Al/Si+nanoPS+AgNPs/TiO2/NiCr structures, respectively. The AC electrical properties were studied using a combination of electrochemical impedance spectroscopy and Mott–Schottky analysis, while the DC electrical properties were determined from current–voltage measurements. From the experimental results, an AC equivalent circuit model was proposed for the three different MIS Schottky barrier diodes under study. Additionally, the most significant electrical parameters were calculated. The results show a remarkable improvement in the performance of the MIS Schottky barrier diodes upon the addition of hybrid nanoPS layers with embedded Ag nanoparticles, opening the way to their use as photovoltaic devices.

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Section: Fabrication Of the Nanops Layersmentioning

confidence: 99%

“…Silver nanoparticles (AgNPs) were grown inside the nanoPS layers using an electrochemical deposition process described in previous work [25]. An aqueous solution of silver nitrate, sodium citrate, and nitric acid (pH = 3) was used.…”

Section: Infiltration Of Silver Nanoparticles (Agnps)mentioning

confidence: 99%

Electrical Characterization of MIS Schottky Barrier Diodes Based on Nanostructured Porous Silicon and Silver Nanoparticles with Applications in Solar Cells

Ramadan

Martín-Palma

2020

Energies

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“…The electrodeposition was carried out as follows: in a crucible (6) with electrolyte (5), which was previously heated to a temperature of 65°C, a previously prepared sample of a porous silicon (4) was immersed. An electric current in the range from 0.5 to 1 A was passed through anode (6) and cathode (3), which provided the beginning of the electrodeposition process. Motor (2) provided a continuous mixing of the electrolyte solution during electrodeposition at a speed of 5000 r/s for 1 h. Then, the samples of porous silicon with a deposited layer of zinc were annealed in a muffle furnace at a temperature of 200°C for 20 min.…”

Section: Functionalization Methods Based On the Electrochemical Deposimentioning

confidence: 99%

“…Due to their multifunctionality, these multilevel composite structures can be actively used as biosensors of a wide range of analytes, devices for targeted delivery of drugs, etc. [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Study of Composite Structures Based on a Porous Silicon Matrix and Nanoparticles Ag/Zno Used as Non-Invasive Highly Sensitive Biosensor Devices

Koshevoi¹,

Belоrus²,

Pleshanov³

et al. 2021

Composite Materials

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In this work composite structures based on a porous silicon were obtained and studied. Porous matrices were formed by electrochemical etching in aqueous solutions of hydrofluoric acid. Based on the obtained substrates, por-silicon (Si)/silver (Ag) and por-Si/zinc oxide (ZnO) composite structures were formed. These composites were functionalized by various methods (electro (E)-, thermo (T)-, electrothermal exposure) as a result of which the structures were modified. When studying the samples by scanning electron microscopy (SEM), it was concluded that silver nanoparticles actively diffused into the pores under these technological modes of functionalization. The por-Si/Ag and por-Si/ZnO composite structures were also studied using the following methods: infrared (IR) spectroscopy and Raman ultrasoft X-ray emission spectroscopy. Also, the photoluminescent characteristics of the samples were studied. Based on the obtained results, it was concluded that functionalization methods actively change the phase composition of structures and the optical properties of composites.

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“…В качестве осаждаемого металла в зависимости от целей исследования могут выступать серебро, золото, магнитные металлы группы железа, олово, индий, цинк и их оксиды. Пористый кремний (por-Si) c осажденными частицами серебра, благодаря широкому набору подстраиваемых под конкретную практическую задачу характеристиками, может применяться в качестве элементов фотодетекторов, солнечных батарей [1], медицинских микроустройств (имплантов) с антимикробным эффек-Леньшин Александр Сергеевич, e-mail: lenshinas@phys.vsu.ru том [2], а также при создании электрохимических сенсоров [3][4].…”

Section: Introductionunclassified

Внедрение Серебра В Матрицу Пористого Кремния Методом Электро-Термодиффузии

Koshevoi

Belоrus

Matyushkin

et al. 2019

kcmf

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В работе были проведены исследования возможности внедрения серебра в пористый кремний методом электро-термодиффузии и установлено влияние процедуры осаждения на адсорбционные свойства поверхности пористой матрицы. Композиты пористого кремния с внедренными частицами металла относятся к многофункциональным материалам и перспективны для применения в современной оптоэлектронике, сенсорике и персонализированной медицине. ИСТОЧНИК ФИНАНСИРОВАНИЯИсследование выполнено при поддержке РФФИ в рамках научного проекта 19-32-50038мол_нр «Исследование морфологических, физико-химических и оптических свойств матриц наоснове por-Si в зависимости от методов их формирования и функционализации». REFERENCES Raúl J. Martín-palma, Patrick D. McAtee, Rehab Ramadan, Akhlesh Lakhtakia. Hybrid nanostructured porous silicon-silver layers for wideband optical absorption. Scientifi c Reports, 2019, v. 9(1), p. 7291. https://doi.org/10.1038/s41598-019-43712-7 Kleps I., Miu M., Danila M., Simion M., Ignat T., Bragaru A., Dumitru L., Teodosiu G. Silver/porous silicon (PS) nanocomposite layers for biomedical applications. Proc. of “2006 International Semiconductor Conference”, 27-29 Sep., 2006, no. 9211112. https://doi.org/10.1109/SMICND.2006.283935 Ensafi A. A., Rezaloo F., Rezaei B. Electrochemical sensor based on porous silicon/silver nanocomposite for the determination of hydrogen peroxide. Sensors and Actuators B, 2016, v. 231, pp. 239–244. https://doi.org/10.1016/j.snb.2016.03.018 Jinjie Yin, Xiang Qi, Liwen Yang, Guolin Hao, Jun Li, Jianxin Zhong A hydrogen peroxide electrochemical sensor based on silver nanoparticles decorated silicon nanowire arrays. Electrochimica Acta, 2011, v. 56(11), pp. 3884–3889. https://doi.org/10.1016/j.electacta. 2011.02.033 Spivak Yu. M., Bespalova K. A., Belorus A. O., Panevin A. A., Somov P. A., Grigor’eva N. Yu., Chistyakova L. V., Zhuravskiy S. G., Moshnikov V. A. Sposob polucheniya i primer lekarstvennoy funktsionalizatsii poverkhnosti nanochastits poristogo kremniya [A method of obtaining and an example of drug functionalization of the surface of porous silicon nanoparticles]. Biotekhnosfera [Biotechnosphere], 2017 (3), pp. 69–75. (in Russ.) Pastukhov A. I., Belorus A. O., Bukina Ya. V., Spivak Yu. M., Moshnikov V. A. Infl uence of technology conditions on the surface energy of porous silicon using the method of contact angle. Proc. of “2017 IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus)”, 1–3 Feb., 2017, pp. 1183-1185. https://doi.org/10.1109/eiconrus.2017.7910770 Matyushkin L. B. Tekhnologiya i oborudovanie dlya polucheniya kolloidnykh kvantovykh tochek CsPbX3 (X = Cl, Br, I), CdSe/ZnS, plazmonnykh nanochastits Ag/SiO2 i gibridnykh struktur na ikh osnove [Technology and equipment for obtaining CsPbX3 colloidal quantum dots (X = Cl, Br, I), CdSe/ZnS, Ag/SiO2 plasmonic nanoparticles and hybrid structures based on them. Cand. Sci. (Eng.) diss. St. Petersburg, 2018, 138 p. URL: https://elibrary.ru/item.asp?id=35115356 (in Russ.) Permiakov N. V., Matyushkin L. B., Belorus A. O., Koshevoi V. L. Investigation of a program-controlled process of impregnation of porous semiconductors with silver nanoparticles to create an electrical contact. Proc. of “IEEE Conference of Russian Young Researchers in Electrical and Electronic Engineering (EIConRus)”, 2018, pp. 539–543. https://doi.org/10.1109/EICon- Rus.2018.8317154 Travkin P. G., Vorontsova N. V., Vysotsky S. A., Lenshin A. S., Spivak Yu. M., Moshnikov V. A. Issledovanie zakonomernostey formirovaniya struktury poristogo kremniya pri mnogostadiynykh rezhimakh elektrokhimicheskogo travleniya [Study of regularities of porous silicon structure formation with multistage modes of electrochemical etching]. Izvestiya SPBGETU LETI, 2011(4). pp. 3–9. (in Russ.) Belorus A. O., Komlev A. A. Certifi cate of state registration of computer programs No. 2014613394. Measurement of contact angle (MofCA) 26 March 2014. (in Russ.) Van Hoonacker A., Englebienne P. Revisiting silver nanoparticle chemical synthesis and stability by optical spectroscopy. Current Nanoscience, 2006, v. 2(4), pp. 359–371. https://doi.org/10.2174/157341306778699310 Girel K. V., Bondarenko A. V. Formirovanie nanostruktur serebra metodom immersionnogo osazhdeniya [Formation of silver nanostructures by immersion deposition method onto porous silicon and study of their optical properties]. Doklady BGUIR, 2014, v. 86(8), pp. 5–10. (in Russ.)

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Hybrid Nanostructured Porous Silicon-Silver Layers for Wideband Optical Absorption

Cited by 24 publications

References 22 publications

Electrical Characterization of MIS Schottky Barrier Diodes Based on Nanostructured Porous Silicon and Silver Nanoparticles with Applications in Solar Cells

Electrical Characterization of MIS Schottky Barrier Diodes Based on Nanostructured Porous Silicon and Silver Nanoparticles with Applications in Solar Cells

Study of Composite Structures Based on a Porous Silicon Matrix and Nanoparticles Ag/Zno Used as Non-Invasive Highly Sensitive Biosensor Devices

Внедрение Серебра В Матрицу Пористого Кремния Методом Электро-Термодиффузии

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