Yuhua Wang – författare

Perovskite Photovoltaics: Basic to Advanced Concepts and Implementation, Second Edition brings together the latest advances in perovskite photovoltaics, associated challenges and opportunities, and how to achieve further developments. This edition presents new topics and novel areas, including defect engineering, interface engineering, additive engineering, anti-solvents, single crystal perovskite solar cells, inorganic perovskites, optoelectronic characterization, and mathematical modeling of perovskite solar cells. In addition, the book contains a detailed analysis of the implementation and economic viability of perovskite solar cells, highlighting what photovoltaic devices need to be generated by low cost, non-toxic, earth abundant materials using environmentally-scalable processes.This book is a valuable resource for all those with an interest in perovskite solar cells, photovoltaics, and more broadly solar energy and renewable energy, including researchers, scientists, graduate students, engineers, R&D professionals, and other industry personnel.

How social networks shaped the imperial Chinese stateChina was the world’s leading superpower for almost two millennia, falling behind only in the last two centuries and now rising to dominance again. What factors led to imperial China’s decline? The Rise and Fall of Imperial China offers a systematic look at the Chinese state from the seventh century through to the twentieth. Focusing on how short-lived emperors often ruled a strong state while long-lasting emperors governed a weak one, Yuhua Wang shows why lessons from China’s history can help us better understand state building.Wang argues that Chinese rulers faced a fundamental trade-off that he calls the sovereign’s dilemma: a coherent elite that could collectively strengthen the state could also overthrow the ruler. This dilemma emerged because strengthening state capacity and keeping rulers in power for longer required different social networks in which central elites were embedded. Wang examines how these social networks shaped the Chinese state, and vice versa, and he looks at how the ruler’s pursuit of power by fragmenting the elites became the final culprit for China’s fall.Drawing on more than a thousand years of Chinese history, The Rise and Fall of Imperial China highlights the role of elite social relations in influencing the trajectories of state development.