Transparent Solar Cells
No matter how sustainable, eco-friendly, and clean sources [blank] energy they are, conventional solar panels require a large setup area and heavy initial investment. Due to these limitations, it's hard [blank] introduce them in urban areas, especially neighbourhoods with lots of apartment blocks or shops. But now researchers have created transparent solar panels which they claim could be used as power-generating windows in our homes. In order to generate power from sunlight, solar cells embedded [blank] a solar panel are required to absorb radiation from the sun. Therefore, they cannot allow sunlight to completely pass through them. Transparent luminescent solar concentrators [blank] capable of selectively absorbing invisible solar radiation, including infrared and UV lights, and letting the rest of the visible rays pass through them. In other words, these devices are transparent to the human eye but still absorb a fraction [blank] the solar light which they can then convert into electricity.
Sample Answer & Audio Transcript
Practice This Question with Real-Time AI Scoring
Record your voice or submit your writing to get official Pearson-aligned scores (10-90) across Oral Fluency, Pronunciation, Grammar, and Content in 1.2 seconds.
Pearson Official Scoring Guide for Reading & Writing: Fill in the Blanks
Scored Enabling Skills
- Communicative Skills & Enabling Skills
Timing Standard
Response Window: Official Pearson Exam Standard