Tailoring Protective Metals for High-Efficient and Stable Dopant-Free Crystalline Silicon Solar Cells

Efficient monodisperse upconversion composite prepared using high-density local field and its dual-mode temperature sensing

“…[1][2][3][4] Owing to their extraordinary advantages of high chemical stability, excellent photostability, narrow-band peak emission, no background, and deep tissue penetration, [5][6][7] UCNPs have found important applications in solar cells and highperformance biolabeling. [8][9][10] However, the increase in the efficiency of UCNPs remains a challenge, which is fundamentally limited by the forbidden nature of f-f in lanthanide elemental ions and non-radiative processes mediated by the bulk and surface defects. 11,12 In recent years, the surface plasmon-enhanced upconversion strategy has attracted considerable attention as it produces extraordinary performance with a high enhancement factor and flexible tunability.…”

Study on the Thermal Stability of Molybdenum Oxide‐Passivated Silicon Solar Cells

“…[ 4–6 ] These materials induce band bending at the c‐Si surface based on the band alignment and interfacial defect density, facilitating the accumulation of one type of carrier and the formation of a carrier‐selective HJ. Various hole transport materials have been used in solar cells, including MoO x , [ 2,3,7,8 ] VO x , [ 9–11 ] and WO x , [ 12–14 ] due to their high WFs. The use of MoO x as hole‐selective contacts has resulted in a remarkable power conversion efficiency (PCE) of 23.83% in dopant‐free solar cells, [ 15 ] demonstrating the tremendous potential of dopant‐free HJ solar cells for applications.…”