According to you, our readers, the following news stories are the most popular between 23rd and 29th April.

The running order is:

1. Liquid solar cells:Nanocrystal liquid inks for energy
2. Graphene boosts efficiency of next-generation solar cells: Graphene sheets as electron bridges
3. Self-assembling conductive nanofibers: Miniature plastic components

Please click the titles to read the full articles.

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