<p>As per the present state of art, due to lack of absorber thickness some fractions of photons are not absorbed by thin crystalline silicon solar cells. The issue may be countered by this reported work through metal-assisted chemical etching-based microwell structures embedded on top of the solar cell, offering numerous bounces and tremendous light scattering. During this work, the author applied this microwell geometry on top of the thin and flexible silicon heterojunction solar cell (p-type crystalline thin substrate with n-type amorphous layer) and some evident improvement of short circuit current (approximately 8.38%) and output efficiency (more than 9%) was realized compared to conventional textured solar cells. This evidence truly justifies the utilization of microwell structures as an anti-reflective coating on thin and flexible c-Si solar cells and is validated by FEM based simulation study through this reported work.</p>