IIT Delhi Researchers Discover Eco-Friendly Method for Developing Perovskite Solar Cells in Ambient Air
IIT Delhi researchers have developed a solution to find perovskite solar cells under ambient conditions, achieving higher efficiency and stability. Know details here
IIT Delhi Researchers Discover Eco-Friendly Method for Developing Perovskite Solar Cells
A research team from the Indian Institute of Technology (IIT) Delhi, led by Prof. Trilok Singh at the Department of Energy Science and Engineering (DESE), has been exploring solutions to address defects, stresses, and reproducibility challenges in solar devices. In a recent publication in the SMALL Journal (Wiley), they successfully fabricated perovskite solar cells under ambient conditions, achieving enhanced efficiency and stability. Moreover, by meticulously selecting specific molecules, the team introduced an anti-solvent-free fabrication strategy aimed at improving device reproducibility.
Developing Perovskite Solar Cells in Ambient Air
To address the lattice mismatch at the electron transport layer (ETL)/perovskite interface, the team utilized Guanidine sulfate salt (Gua-S). This salt effectively minimizes interfacial stresses due to the similar sizes of the Gu and FA ions. Additionally, Gua-S can mitigate both cationic and anionic defects in the film, thanks to its amino anchoring groups (-NH2) and sulfate anion (SO4²⁻).
Prof. Trilok Singh, DESE said, “The device demonstrated exceptional stability, maintaining 87% of its initial PCE after 2000 hours of operation. This highlights the potential of Gua-S as an effective approach for improving both the performance and long-term stability of PSCs. Such innovative solution of using anti-solvent-free techniques will promote the upscaling of perovskite solar cells under ambient conditions.”
Q: Who is eligible for IIT Delhi MSc course?
Q: How much CAT percentile is required for DMS IIT Delhi?
DMS IIT Delhi cutoff 2023 to Management courses including MBA is based of valid CAT scores. For DMS IIT Delhi MBA admission, students must meet both the overall CAT cut off percentile and the sectional cut off. Tabulated below is CAT percentile for DMS IIT Delhi cutoff for General category students for last two years:
| Master of Business Administration (MBA) - DMS IIT Delhi : CAT percentile Cutoff (General-All India) | ||
|---|---|---|
| Section | 2022 | 2023 |
| Overall | 98.04 | 98.04 |
| Quants | 98.04 | 98.04 |
| VA-RC | 98.04 | 98.04 |
| DI-LR | 98.04 | 98.04 |
Q: Can I do MTech at IIT Delhi without GATE?
IIT Delhi MTech admission is completely entrance-based. Candidates seeking admission to the IIT Delhi MTech course must appear for the Graduate Aptitude Test in Engineering (GATE). However, BTech graduates from IITs with an overall CGPA of 8.00 out of 10 are exempted from GATE and are eligible for direct admissions. Apart from this, candidates are also requested to fulfil the minimum eligibility criteria to be eligible for IIT Delhi MTech admission.
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Candidates applying to a MSc course in IIT Delhi must fulfil the required eligibility criteria. Thus, aspirant must hold a valid bachelor's degree in a relevant stream for at least two years (four semesters) and a minimum aggregate between 55% and 80% or 5.5 CGPA out of 10. For MSc cognitive science/economic courses, the accepted degrees are BA/BSc/BCom/BTech/BE/BStat/BMath or equivalent. The total course fee for MSc course is ranges between INR 30K and INR 3 lakh.
For more MSc course details, Click Here.