As I had just completed repairs to my large array of IR LEDs (see last post), I decided to compare what my camera could see with what my phone could see.
Below: A photo of the array taken with my camera - green, as expected. Still not very bright though. It appears the green sensors are only marginally receptive to IR and the red and blue sensors scarcely at all.
Below: My phone appears highly sensitive to IR, the red and blue sensors more so than the green.
And they say the camera never lies...