History of engineering & technology 2 absorber photovoltaics 2 silicon 2 3D printed 1 Autonomous Internet of Things 1 CIGS 1 CdS 1 CdS/CdTe 1 CdSe 1 CdTe 1 CdTe film 1 CdTe1−xSex 1 Cu(In,Ga)Se2 1 DDES 1 IoT 1 P1 shunt 1 SnS/SnS2 1 TCAD 1 TEG 1 Technology: general issues 1 Tesla 1 TiO2/SnO2 layer 1 WSN 1 Wiegand sensor 1 acoustic resonance 1 animal 1 anti-reflection coating 1 artificial intelligence 1 autonomous sensors 1