Indian Scientists Develop High-Efficiency Perovskite Solar Cells
Researchers at IIT Bombay have developed high-efficiency Perovskite solar cells that could revolutionize renewable energy.
2-Minute Summary (TL;DR)
- IIT Bombay researchers develop Perovskite solar cells with >25% efficiency.
- Perovskite cells are more cost-effective and flexible than silicon cells.
- Supports India's 2030 renewable energy goals.
How This Topic is Tested in Competitive Exams
| Exam | Frequency | Approx. Marks | What Gets Asked |
|---|---|---|---|
| UPSC / State PCS | Medium | 5–8 | UPSC tests Science & Technology through governance: space policy, biotech regulations, cyber security. |
| SSC (CGL / CHSL / MTS) | High | 4–8 | Basic science, space missions, ISRO launches, and defence technology are standard SSC GK topics. |
| Railway (RRB NTPC / Group D) | Very High | 6–10 | Science and Technology is one of the largest GK sections in Railway papers. |
What to Memorize from This Topic
- ISRO missions: satellite name, purpose, launch date, orbit type
- Defence acquisitions: system name, origin country, inducted into which force
- COVID/health research: vaccine names, institutes involved, approval status
- Technology achievements: first-ever milestones, world records, India-specific achievements
- Scientific organizations: HQ, head, purpose (CSIR, DRDO, BARC, ICAR)
Practice Questions
Q1. Which institution developed the high-efficiency Perovskite solar cells?
- IIT Delhi
- IIT Bombay
- IISc Bangalore
- IIT Madras
Explanation: Researchers at IIT Bombay developed these high-efficiency Perovskite solar cells.
Q2. What is a major advantage of Perovskite solar cells over traditional silicon cells?
- Higher weight
- Lower manufacturing cost
- Lower efficiency
- Non-recyclable
Explanation: Perovskite solar cells are known for being cheaper to manufacture and potentially more flexible than silicon cells.
How to Prepare Science & Technology for Government Exams
For Railway exams, make flashcards for every major ISRO launch — name, payload, purpose, date. These repeat frequently.
For SSC, focus on defence acquisitions and their strategic significance rather than technical specs.
For UPSC, connect every scientific development to policy — climate targets, digital India, health policy.
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