kaz29Вестник Казахстанско-Британского технического университетаHerald of the Kazakh-British Technical University1998-66882959-8109Казахстанско-Британский Технический Университет10.55452/1998-6688-2026-23-3-414-421kaz29-3202Research ArticleФИЗИЧЕСКИЕ НАУКИPHYSICAL SCIENCESПОВЫШЕНИЕ ГЕНЕРАЦИИ ПЛОТНОСТИ ФОТОТОКА С ПОМОЩЬЮ ПОРИСТЫХ ПЛЁНОК TIO2 , МОДИФИЦИРОВАННЫХ ПОЛИСТИРОЛЬНЫМИ ЧАСТИЦАМИIMPROVING PHOTOCURRENT DENSITY GENERATION BY POROUS TIO2 FILMS MODIFIED WITH POLYSTYRENE PARTICLEShttps://orcid.org/0009-0004-0284-6111ЕстөрееваА.YestoreyevaA.

Магистрант

Астана

MSc student

Astana

akzhan.yestoreyeva@nu.edu.kzhttps://orcid.org/0000-0001-7252-4098АтабаевТ. Ш.AtabaevТ. S.

PhD

Астана

PhD

Astana

timur.atabaev@nu.edu.kzНазарбаев УниверситетКазахстанNazarbayev UniversityKazakhstanНазарбаев Университет; Институт функциональных материаловКазахстанNazarbayev University; Institute of Functional MaterialsKazakhstan202626092026233414421Copyright © Естөреева А., Атабаев Т.Ш., 20262026Естөреева А., Атабаев Т.Ш.Yestoreyeva A., Atabaev Т.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://vestnik.kbtu.edu.kz/jour/article/view/3202

Разработка пористых тонких пленок TiO2 представляет большой интерес для фотоэлектрических и фотокаталитических применений благодаря их способности улучшать использование света. В данной работе пористые пленки TiO2 были получены с использованием полистирольных (PS) частиц диаметром 350 нм в качестве структурообразующих шаблонов, а влияние концентрации PS частиц на генерацию фототока было систематически исследовано. Морфологический и оптический анализы подтвердили успешное формирование пористых структур с улучшенными характеристиками светопоглощения. Оптимизированная плёнка TiO2 , модифицированная полистирольными (PS) частицами, продемонстрировала плотность фототока около 118 мкА/см2 , что соответствует увеличению примерно на 20,5% по сравнению с немодифицированной пленкой TiO2 . Измерения с использованием интегрирующей сферы показали повышение общего поглощения света пористыми пленками, что свидетельствует о том, что улучшение генерации плотности фототока обусловлено более эффективным захватом света в пористой структуре. Данная работа подчеркивает важность управления пористостью и демонстрирует, что структурирование с использованием PS частиц является эффективным подходом для повышения эффективности фотоактивных тонких пленок на основе TiO2 .

The development of porous TiO2 thin films is of significant interest for photovoltaic and photocatalytic applications owing to their ability to enhance light utilization. Herein, porous TiO2 films were prepared using 350 nm polystyrene (PS) particles as sacrificial templates, and the effect of PS concentration on photocurrent generation was systematically evaluated. Morphological and optical analyses confirmed the successful formation of porous structures with improved light-harvesting characteristics. Typically, the optimized PS-modified TiO2 film exhibited a photocurrent density of ~118 μA/cm2 , corresponding to an enhancement of ~20.5% relative to bare TiO2 film. Integrating sphere measurements revealed increased total absorbance for the porous films, indicating that the improved photocurrent density generation originates from enhanced light trapping within the porous surface. This work highlights the importance of porosity engineering and demonstrates that PS-assisted templating is an effective approach for enhancing the performance of TiO2 -based photoactive thin films.

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The authors declare that there are no conflicts of interest present.