Influence of thin films on photoelectric properties of solar cells based on p-GaAs/n-Cdo.25Zno.75So.eTeo.2 heterojunctions
The heterojunctions, like electronic devices, are non-linear elements, which means that their OCA cannot be described by the usual Ohm's law. When illuminated from the side of the n-type semiconductor, the radiation is absorbed in the semiconductor.
| Рубрика | Коммуникации, связь, цифровые приборы и радиоэлектроника |
| Вид | статья |
| Язык | английский |
| Дата добавления | 15.09.2024 |
| Размер файла | 311,6 K |
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Influence of thin films on photoelectric properties of solar cells based on p-GaAs/n-Cdo.25Zno.75So.eTeo.2 heterojunctions
Elmira Alesgerovna Khanmamedova
Assistant, Faculty of information technology and control Azerbaijan State University of Oil and Industry, Baku, Azerbaijan
In general, heterojunctions, like electronic devices, are non-linear elements, which means that their OCA cannot be described by the usual Ohm's law. When illuminated from the side of the n-type semiconductor, the radiation is absorbed in the p-type semiconductor and creates an electron-hole pair. The short-circuit current and open-circuit voltage are the maximum current and voltage provided by the p-n junction, so the power of the p-n junction at these points is zero.[4,6,7] The FF parameter, called the fill factor, characterizes the maximum power of the p-n heterophotocell and graphically characterizes the squareness of the VAC heterojunction. In VAC, it is determined by the area of the rectangle:
The useful work factor of a hetero cell is determined by the following expression:
The useful efficiency of heterophotocells is inevitably influenced by many factors. Since the refractive index of most semiconductors is n>3, a large part of the incident light is reflected from the buffer layer. [1,2,10] Thus, photons whose energy is not enough for the internal photoeffect do not participate in the electrical energy conversion. To prevent this the method of covering the surface with a transparent interference layer was used. Cd1-xZnxO type thin layers are indispensable in such coatings. In the conducted research, Cd1-xZnxO type thin films were applied in GaAs- based heterojunctions. x=0.6; The influence of 0.7 and 0.8 thin films on the photoelectric properties of p-GaAs/n-Cd0.25Zn0.75S0.8Te0.2 heterojunctions was studied.[3,11,12] Distribution curves of photocurrent spectrum in Cd1-xZnxO heterojunctions without transparent layer are shown.(Fiq.1.)
Fig. 1. Spectral distribution curves of photocurrentin d ifferent TP modes in p- GaAs/n-Cd0.25Zn0.75S0.8Te0.2 heterojunctions without Cd1-xZnxO transparent layer.
Conclution
As it can be seen, after thermal treatment at 390°C temperature for 14 minutes, photosensitivity in wavelength region Xm=0.38-0.8 mkm increases dramatically.[5,8] It is true that when doping with Al, it is possible to reduce the resistance of ZnO thin films, although it is possible to increase the value of the current and the open circuit voltage in a certain sense, but this is not considered technologically very promising, and with their thin Cd1-xZnxO thin films is small in comparison.[9,11]
References
heterojunction photoelectric propertie
Jafarov M.A., Nasirov E.F. , Khanmamedova E.A. "Preparation of
nanosized А2В6 Compound Multilayer Structures for Solar Cell " Universal Journal of Physics and Application 1(2): p.125-129,2013
https://www.hrpub.org/download/201309/ujpa.2013.010212.pdf
М. А. Джафаров, Э. Ф. Насиров, С. А. Джахангирова, Е. А. Ханмамедова
"Фотохимическая реакция в наноразмерных пленках твёрдых растворов А2В6, осажденных из раствора" Российскиая Федерация, г. Воронеж, Конденсированные среды и межфазные границы, том 15, № 3, 2013.
http://www.kcmf.vsu.ru/resources/t_15_3_2013_007.pdf
H.M. Mamedov, M.Muradov, M.Jafarov, Z.Konya, A.Kukovecz, K.Kordas, S.I. Shah,
V.J.Mamedova, Kh.M.Ahmedova, V.U.Mamedov, E.A.Khanmamedova. "Photo- and gas- sensitivity of heterojunctions c-Si/porous-Si/CdS" Journal of Low Dimensional Systems, v 1 (1), 2017, Baku State University.
https://www.researchgate.net/publication/323280578_Photo-_and_gas- _sensitivity_of_heterojunctions_c-Siporous-SiCdS
S.R.Figarova, E.M.Aliyev, R.G.Abaszade, R.I.Alekberov, V.R.Figarov,
Negative Differential Resistance of Graphene Oxide/Sulphur Compound, Journal of Nano Research Submitted, Vol.67, pp.25-31, 2021.
http://dx.doi.org/10.4028/www.scientific.net/JNanoR.67.25
R.G.Abaszade, O.A.Kapush, S.A.Mamedova, A.M.Nabiyev, S.Z.Melikova, S.I.Budzulyak,
Gadolinium doping influence on the properties of carbon nanotubes, Physics and Chemistry of Solid State, Vol. 21, No. 3, pp. 404-408, 2020.
https://doi.org/10.15330/pcss.21.3.404-408
R.G. Abaszade, O.A. Kapush, A.M. Nabiyev, Properties of carbon nanotubes doped with gadolinium, Journal of Optoelectronic and Biomedical Materials, Vol.12, №3, pp.61-65,
2020. https://www.chalcogen.ro/61_AbaszadeRG.pdf
Kh.M.Popal, R.G.Abaszade, Research and modeling of hybrid energy systems (review),
Ecoenergetics, №1, pp.65-69, 2022. http://ieeacademy.org/wp-
content/uploads/2022/05/ECOENERGETS-JOURNAL-No1.-2022.pdf#page=66
R.G.Abaszade, S.A.Mamedova, S.T.Azizov, O.A.Aliyev, E.M.Aliyev, A.M.Nabiyev, Syntesis and analysis of few-layered graphene oxide, AJP Fizika, Vol.25, №2, section: Az, pp.56-49,
2019. http://physics.gov.az/Dom/2019/AJP_Fizika_02_2019_az.pdf
R.G.Abaszade, A.G.Mammadov, V.O.Kotsyubynsky, E.Y.Gur, I.Y.Bayramov,
E.A.Khanmamadova, O.A.Kapush, Modeling of voltage-ampere characteristic structures on the basis of graphene oxide/sulfur compounds, International Journal on Technical and Physical Problems of Engineering, Vol.14, №2, pp.302-306,2022.
http://www.iotpe.com/IJTPE/IJTPE-2022/IJTPE-Issue51-Vol14-No2-Jun2022/37-IJTPE- Issue51 -Vol14-No2-Jun2022-pp302-306.pdf
R.G.Abaszade, A.G.Mamedov, I.Y.Bayramov, E.A.Khanmamadova, V.O.Kotsyubynsky, O.A.Kapush, V.M.Boychuk, E.Y.Gur, Structural and electrical properties of sulfur-doped graphene oxide/graphite oxide composite, Physics and Chemistry of Solid State, Vol.23,
№2, pp. 256-260, 2022.
E.A.Khanmamedova, Effect of KOH + C3H8O texturing on the electrical Properties of p-
Si/textured-Si/ZnS1-xSex heterojunctions Journal of Baku Engineering University PHYSICS 2019. Volume 3, Number 2, p146-150
http://journal.beu.edu.az/media/media/files/Fizika_2019_2_Volume3_Number2.pdfE.A.Khanmamedova, Effect of etching on the electrical properties
of ZnS1-XSeX/P-Si andZnSe1-XTeX/P-Si heterojunctions Journal of Low Dimensional Systems, v 3 (2), 2019, Baku State University.
http://static.bsu.az/w10/Shekil/LOW%20Dimension%20Journal/2019- 2/LDS%20VOL3(2)%20(2)%20en%20son%201.pdf
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