{"title":"Retardation of Perovskite Crystal Growth by Lead Thiocyanate Addition and Its Effect on Perovskite Solar Cell Performance","authors":"G.-J. Han, P. Kim, K.‑S. Sonu, J.‑H. Ri","doi":"10.1134/S1990793125700228","DOIUrl":null,"url":null,"abstract":"<p>The control of crystallization process of perovskite plays an important role in the performance improvement of PSCs (perovskite solar cells). In this work, we prepared perovskite by the addition of lead thiocyanate (Pb(SCN)<sub>2</sub>) to a perovskite precursor solution and investigated its effect on the performance of PSCs consist of FTO/TiO<sub>2</sub>/ZrO<sub>2</sub>/carbon structure. It was found that the crystallization process of perovskite by Pb(SCN)<sub>2</sub> addition was very slow, which was confirmed by XRD analysis that it took at least 24 h to complete the conversion to perovskite. The maximum efficiency of PSCs with carbon electrode manufactured using Pb(SCN)<sub>2</sub> additive was 15.6%. The analysis showed that Pb(SCN)<sub>2</sub> addition contributes to the performance improvement of devices by delaying the crystallization rate of perovskite, increasing the crystal size and suppressing the non-radiative recombination.</p>","PeriodicalId":768,"journal":{"name":"Russian Journal of Physical Chemistry B","volume":"19 2","pages":"512 - 519"},"PeriodicalIF":1.4000,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Physical Chemistry B","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1134/S1990793125700228","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, ATOMIC, MOLECULAR & CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The control of crystallization process of perovskite plays an important role in the performance improvement of PSCs (perovskite solar cells). In this work, we prepared perovskite by the addition of lead thiocyanate (Pb(SCN)2) to a perovskite precursor solution and investigated its effect on the performance of PSCs consist of FTO/TiO2/ZrO2/carbon structure. It was found that the crystallization process of perovskite by Pb(SCN)2 addition was very slow, which was confirmed by XRD analysis that it took at least 24 h to complete the conversion to perovskite. The maximum efficiency of PSCs with carbon electrode manufactured using Pb(SCN)2 additive was 15.6%. The analysis showed that Pb(SCN)2 addition contributes to the performance improvement of devices by delaying the crystallization rate of perovskite, increasing the crystal size and suppressing the non-radiative recombination.
期刊介绍：
Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.
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