Sunlight is undoubtedly one of the most valuable resources in the quest to find adequate solutions towards a diversified and sustainable energy supply. Given that CO2 is a greenhouse gas, using sunlight to convert CO2 to transportation fuel (such as methanol) represents a value-added approach to the simultaneous generation of alternative fuels and environmental remediation of carbon emission. Photoelectrochemistry (PEC) is a useful avenue for solar water splitting; CO2-reduction, however, is multi-electron in nature with considerable kinetic barriers to electron transfer. In the „Momentum” Photoelectrochemistry Research Group, which is led by Dr. Csaba Janáky, the researchers design and assemble hybrid materials to be simultaneously applied as both absorber and cathode-material in PEC CO2 conversion. Rationally designed nanostructured hybrids of p-type semiconductors and custom designed functional N-containing conducting polymers are responsible for higher photocurrent densities due to facile charge transfer and better light absorption, higher selectivity towards methanol due to the adsorption of CO2 on the photocathode, better stability of the SC. No doubt: the challenges are great, but the possible rewards are enormous.