Publications by authors named "Anjali Chandel"
Article Synopsis
- Faormamadinium-based perovskites are being researched as replacements for methylammonium lead tri-iodide (MAPbI) in solar cells due to better stability and light absorption.
- The presence of crack defects in undoped FAPbI films causes issues by leading to a phase transition, which negatively affects the solar cell performance.
- An optimal crack ratio of 4.86% to 9.27% was found to improve the photovoltaic performance, with significant increases in voltage and current density observed at a crack ratio of 8.47%.
Article Synopsis
- The study focuses on a new flexible polymer, P3CT, which serves as a hole modification layer in inverted perovskite solar cells, enhancing their performance.
- The P3CT polymers exhibit unique properties due to their aggregation in a specific solvent, which positively affects the photovoltaic abilities of the solar cells.
- Long-term tests show that solar cells utilizing the optimized P3CT maintain high voltage and power conversion efficiency even after extended periods in ambient conditions, indicating strong durability.
Calla lily ( (L.) Spreng.) is an important ornamental crop used in garden landscapes, floral arrangements, and medicinal applications.
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- The drying time of saturated MAPbI precursor solutions significantly affects the grain sizes of thin films and the atomic contact strength at the MAPbI/P3CT-Na interface, impacting the performance and longevity of inverted perovskite solar cells.
- Increased merging of MAPbI grains leads to improved short-circuit current density and fill factor, along with a rise in open-circuit voltage from 1.01 V to 1.15 V, enhancing power conversion efficiency from 17.89% to 19.55% within 30 days.
- Optimizing the drying time during the spin coating process not only facilitates the merging of MAPbI grains but also maintains quality contact at the MAPbI/P3CT-Na interface
Gladiolus (Gladiolus grandiflorus Andrews) is a high-valued bulbous cut flower. However, the shorter postharvest life of the gladiolus, limits its marketing and commercial value. In the present investigation, the effect of lemon grass (LG) essential oil as an antimicrobial agent was studied towards increasing the vase life of gladiolus.
View Article and Find Full Text PDFThe bird of paradise ( L.) is one of the important tropical cut flowers. Generally, flowers like bird of paradise (BOP) grown for the commercial ornamental market must be of high pre and postharvest quality.
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- The study explores how varying the antisolvent temperature during the washing enhanced nucleation (WEN) process affects the properties of CHNHPbI crystalline thin films and the performance of MAPbI photovoltaic cells.
- The characterization techniques used include atomic-force microscopy, X-ray diffractometry, and photoluminescence spectrometry, revealing a shift in the crystalline phase from (110)-(002) complex to a preferred (002) phase as temperature changes.
- The highest power conversion efficiency of the MAPbI photovoltaic cells reaches 19.30% at an antisolvent temperature of 30 °C, attributed to improved carrier collection efficiency and reduced carrier recombination.
Article Synopsis
- The quality of interfacial contact between hydrophobic PCBM and hydrophilic MAPbI thin films can be improved using a binary antisolvent mixture, enhancing the power conversion efficiency of solar cells.
- Incorporating 10% dichloromethane in the antisolvent mixture helps create a nano-textured MAPbI film with larger grains, boosting short-circuit current density and fill factor.
- The solar cells achieve a remarkable fill factor of 80.33%, indicating stable photovoltaic performance even without additional encapsulation.
Article Synopsis
- The power conversion efficiency of polyelectrolyte (P3CT-Na) based MAPbI solar cells improves from 14.94% to 17.46% through a wetting method applied before spin-coating.
- Detailed investigations using various techniques (like atomic-force microscopy and x-ray diffraction) reveal how the wetting process affects the surface and structural properties of MAPbI thin films.
- The results suggest that this wetting technique helps manipulate the molecular packing of the P3CT-Na thin film, which is crucial for the successful formation of MAPbI thin films.
Article Synopsis
- A high-efficiency inverted-type CHNHPbI solar cell was developed using an ultrathin P3CT-Na film as the hole transport layer, increasing power conversion efficiency (PCE) from 11.72% to 18.92%.
- The improvement is attributed to enhanced short-circuit current density and better molecular packing, which influences the quality of the MAPbI thin film and the interface contact.
- The findings suggest that the double-filtering method could potentially boost the efficiency of other polymer-based solar cells, achieving PCE values over 30% in specific wavelength ranges under low light.
Mitigation of indoor air pollutants using Areca palm potted plants in real-life settings.
Environ Sci Pollut Res Int
February 2021
Deterioration of indoor air quality (IAQ) has become a serious concern as people spend lots of time indoors and prolonged pollution exposure can result in adverse health outcomes. Indoor plants can phytoremediate a wide variety of indoor contaminants. Nonetheless, few experiments have demonstrated their efficacy in real-time environments.
View Article and Find Full Text PDFThe Way to Pursue Truly High-Performance Perovskite Solar Cells.
Nanomaterials (Basel)
September 2019
The power conversion efficiency (PCE) of single-junction solar cells was theoretically predicted to be limited by the Shockley-Queisser limit due to the intrinsic potential loss of the photo-excited electrons in the light absorbing materials. Up to now, the optimized GaAs solar cell has the highest PCE of 29.1%, which is close to the theoretical limit of ~33%.
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