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Two‐Step Deposition Approach for Lead Free (NH<sub>4</sub>)<sub>3</sub>Sb<sub>2</sub>I<sub>9</sub> Perovskite Solar Cells with Enhanced Open Circuit Voltage and Performance

Praveen Kumar, Khursheed Ahmad, Janardan Dagar, Eva Unger, Shaikh M. Mobin

2021ChemElectroChem44 citationsDOI

Abstract

Abstract In recent years, development of lead (Pb) free perovskite solar cells (PSCs) has attracted the scientific community because of their stability in air and less toxic nature. Antimony (Sb) based perovskite like‐materials such as (CH 3 NH 3 ) 3 Sb 2 I 9 and (NH 4 ) 3 Sb 2 I 9 have been employed as light absorbers and showed promising features for photovoltaic applications. Herein, we have utilized (NH 4 ) 3 Sb 2 I 9 as light absorber for the construction of Pb free PSCs. Moreover, we have employed a modified two step procedure for the preparation of (NH 4 ) 3 Sb 2 I 9 . The developed Pb free PSCs device ( FTO/CL‐TiO 2 /m‐TiO 2 /(NH 4 ) 3 Sb 2 I 9 /HTM/Au ) exhibited enhanced power conversion efficiency (PCE) of 0.42 % with open circuit voltage (Voc) of 945 mV.

Topics & Concepts

Perovskite (structure)Open-circuit voltageAntimonyMaterials scienceEnergy conversion efficiencyPhotovoltaic systemOptoelectronicsDeposition (geology)NanotechnologyAnalytical Chemistry (journal)VoltageChemical engineeringChemistryCrystallographyElectrical engineeringMetallurgyOrganic chemistryPaleontologyBiologySedimentEngineeringPerovskite Materials and ApplicationsSolid-state spectroscopy and crystallographyQuantum Dots Synthesis And Properties
Two‐Step Deposition Approach for Lead Free (NH<sub>4</sub>)<sub>3</sub>Sb<sub>2</sub>I<sub>9</sub> Perovskite Solar Cells with Enhanced Open Circuit Voltage and Performance | Litcius