A photovoltaic cell (1) configured to be arranged on an inner surface of a transparent glass or on a dial of a portable object, said photovoltaic cell (1) comprising a first transparent conductive layer (TCO) constituting a front collector layer (4), an amorphous silicon layer (6) on the front collector layer (4) and a conductive layer (8) on the amorphous silicon layer (6), constituting a rear collector, an electrical connection from the conductive layer (8) to the front collector layer (4) being made through the amorphous silicon layer (6),
- wherein the electrical connection of the conductive layer (8) to the front collector layer (4) is made through the amorphous silicon layer (6) at the periphery of the photovoltaic cell, wherein the conductive layer (8) comprises a positive peripheral bus (8′), which is connected to the front collector layer (4) and to at least two positive connection terminals (8′a, 8′b) at ends of the positive peripheral bus, and a negative peripheral bus, which is connected to a negative connection terminal, and wherein the positive and negative peripheral buses have different lengths along the periphery of the photovoltaic cell, with the positive peripheral bus having a greater length than the negative peripheral bus, and
- wherein the at least two positive connection terminals (8′a, 8′b) pass through the amorphous silicon layer (6) and contact the front collector layer (4), the at least two positive connection terminals (8′a, 8′b) being connected in parallel.