Complex sentence: Tetrapod quantum dots have four arms emanating from the quantum dot's core that act as optical rectennas in absorbing photons, and longer arms absord more than shorter arms, which positively affects charge (or electron) transport while reducing hopping, diffusion, and recombination.
Split into simpler sentences: Tetrapod quantum dots have four arms emanating from the quantum dot's core that act as optical rectennas in absorbing photons. Longer arms absorb more than shorter arms, which positively affects charge (or electron) transport while reducing hopping, diffusion, and recombination.