Cnt solarcell5/16/2023 ![]() ![]() Here, we propose a gas-doping method by exposing as-fabricated CNT-Si solar cells to ozone for a short time. Thus, our results show that the combination of PVP interlayer and CZTS&CNT HTL offer an opportunity for the scalability of PSCs.Ĭarbon nanotubes (CNTs) have been integrated with silicon to construct CNT-Si heterojunction solar cells doping CNTs is one of the promising techniques to improve the solar cell performance. The formation of hydrophobic CNT webs among the sphere-like CZTS nanostructures and the presence of the PVP polymeric interlayer results in highly stable devices, which retained more than 98% of the initial PCE at room temperature and 40–45% humidity after 30 days. The power conversion efficiency (PCE) of the record device reached to 15.2%, fill factor (FF) increased up to 70% and also demonstrated low hysteresis of 2.3%. While, the latter only result in higher short circuit current density (Jsc) from 18.3 to 20 mA cm⁻², by using both of the strategies an increase in open circuit voltage (Voc) from 0.98 to 1.05 V as well as Jsc from 18.3 to 20.5 mA cm⁻² has been observed. Second, single-walled carbon nanotubes (CNTs) is incorporated into the CZTS HTL. First, an interlayer of poly(4-vinylpyridine) (PVP) has been applied between the perovskite and the hole transport layer (HTL). Moreover, simultaneously two strategies has been employed to optimize the photovoltaic parameters. To address these issues, an inexpensive, eco-friendly, and environmentally stable nanostructure of the quaternary chalcogenide Cu2ZnSnS4 (CZTS) as an inorganic hole transport material (HTM) has been investigated. In the last decade, PSCs have depicted a rapid development in device performance, meanwhile, the issue of utilizing low-cost, non-toxic materials with chemical stability as well as long term device stabilities are still lacking. ![]() Organic-inorganic perovskite solar cells (PSCs) are emerging candidates for next generation photovoltaic devices. The application of PEDOT:PSS-CNT composite film is not limited to c-Si solar cells, but can also be used to fabricate flexible organic and perovskite solar cells. The composite layer induced a strong inversion layer in silicon and enhanced the device performance. The role of CNT in the charge transport mechanism and improving V oc was corroborated by employing various characterisation methods such as J-V, C-V, and electro-chemical impedance spectroscopy. The pristine PEDOT:PSS/ Si device obtained an η of 6.2% with a V oc of 502 mV. The heterojunction solar cell with the optimised PEDOT: PSS-CNT HSL showed a notable open-circuit voltage (V oc) of 588.6 mV, short circuit current density (J sc) of 25.3 mA/ cm 2 and fill factor (FF) of 60.79% yielding a photo-conversion efficiency (η) of 9.05%. In this work, we present a simple and solution-based synthesis approach to combine the virtues of PEDOT:PSS and carbon nanotube (CNT) by developing a composite film and their application as a hole selective layer (HSL) in organic-silicon hybrid heterojunction solar cell. ![]()
0 Comments
Leave a Reply. |