Want to sound like a fourth grader shilling their science project? Use exclamation marks in your summary.
I'm not sure if the summary has been changed since you posted, but here is what I currently see:
A team from UCLA has developed a new transparent solar cell that has the ability to generate electricity while still allowing people to see outside. In short, they've created a solar power-generating window! Described as 'a new kind of polymer solar cell (PSC)' that produces energy by absorbing mainly infrared light instead of traditional visible light, the photoactive plastic cell is nearly 70% transparent to the human eye â" so you can look through it like a traditional window.
I count a single exclamation mark in the summary. I also only a see a grand total of one exclamation in any of the linked articles (this paragraph is copied verbatim in the summary). Assuming the summary hasn't changed, I have no idea why you were modded +5 Insightful (at the time of this post) for a trivial, and overall worthless complaint that really adds nothing of value to the discussion.
However, if the summary has been edited, then I apologize for my rudeness.