An insight into the mechanism of charge transfer of organic (P3HT): inorganic (CZTS) composites for hybrid photovoltaics. (3rd July 2022)

• Record Type: Journal Article
• Authors: Jain, Shefali; Chaudhary, Neeraj; Sharma, Shailesh Narain
• Is Part Of: Materials technology. Volume 37:Number 8(2022)
• Page Start: 684
• Page End: 694
• Publication Date: 2022-07-03
• Subjects: CZTS nanoparticles -- S-source variation -- shape variation -- charge-transfer study -- hybrid - solar cell; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Technological innovations -- Periodicals; 620.1105
• DOI: 10.1080/10667857.2020.1870195
• Languages: English
• ISSNs: 1066-7857

Abstract

ABSTRACT: In the present work, Cu2ZnSnS4 (CZTS) nanoparticles were prepared with different S-sources using a hot injection colloidal route. The morphological and structural properties have been analyzed. The dendrimers like nanocrystals were observed using thiourea while, spherical and triangular-shaped nano-particles were observed using elemental-S, and 1-Dodecanthiol (1-DDT) respectively. The charge transfer studies have been carried out and analyzed using Stern-Volmer curves for all three CZTS NPs with P3HT solution. CZTS NPs with thiourea as S-source were found to have the best charge-transfer capabilities. These nanoparticles were then mixed with a polymer and aromatic fullerene and were used as the active layer material for the hybrid photovoltaic solar cell. The increment of 34% power conversion efficiency (PCE) was observed with a small amount (6%) of CZTS nanoparticles. Surface morphology observed using atomic force microscopy of an active layer shows an increase in PCE with the decrease in the roughness of the film. Graphical Abstract: uf0001